Tag Archives: Ribwort

CalNat Field Trip #2, Lake solano Park, 07-13-19

On the way to Lake Solano Park for our second Certified California Naturalist field trip of the summer, I stopped to put some gas in my car, and I was treated with the sight of some hot air balloons floating over the city of Winters and its surrounding fields. One of the balloons was either dragging or coming in for landing because it got REALLY low over downtown. I could see the people in the basket.  I was kind of surprised to see the balloons at all considering that it was already about 62° when I got to Winters.  Hot air balloons only work if the air around them is cooler than the air in the balloon (so they fly more successfully in the fall-to-spring time period than they do in the summer.)

I was the first one in our group to get to the park and pulled up into one of the upper parking lots because the lot nearest the park itself was still closed.  Technically, the park doesn’t open until 8:00 am, so I was there before the all-gates-open time. The rangers weren’t too pleased that I was in the upper lot before 7:30 am, but they didn’t say anything – until AFTER 8:00 am and my students had arrived, and we were in the park area itself.  I’ll know better next time not to get there early.

The reason for trying to get my group there earlier in the day, though, was to try to beat the heat. It got up to 79° by 10:30 am. So, we cut the trip a little short to get everyone back in their air-conditioned cars before we all overheated. Along with my co-worker Bill and most of the students in the class, Greg Ira (the Director of the Certified California Naturalist program at the University of California) joined us for our walk.

CLICK HERE for the full album of photos.

One of the first things we pointed out to the group was the difference between the native Black Walnut trees and the English Walnut trees. English Walnut trees don’t generally do good in California, so they’re grafted onto the native Black Walnut root stock. We were able to show the students the graft mark in one of the trees (with the Black Walnut on the bottom and the English Walnut on top) and showed them that even through the tree itself was now primarily English Walnut, they could still see some shoots of Black Walnut stems and leaves growing up out of the root stock.

English Walnut grafted onto Black Walnut rootstock.

We seemed to hear more birds than we put eyes on, and my student Alison K., who like our student Ken E., is a birding expert, helped us with the sound IDs.  Alison also told the group about the sap wells we were seeing in the bark of some of the trees, created by Sapsucker birds who drill the wells not so much to suck the sap, but to attract insects they can eat.  On one tree we found several clear samples of the wells, along with some hefty outpourings of the sweet sap.

Tree sap oozing from wells drilled by Sapsuckers.

We also came across a large juvenile Great Blue Heron that was sitting in a tree adjacent to the trail.  It posed for some photos, pooped into the river and then flew off with a deep-throated croaky squawk. I guess he told us what he thought about us. We also came across a small creche of Peahens with their fledgling poults. A group of three moms were taking the babies to the edge of the river to get a drink.

 I myself was focused more on finding galls than seeing birds on this trip, however, and was able to point out newly budding examples of Pumpkin galls, Roll Gall Midge galls, Erineum Mite galls, Cluster Galls, Spiny Turbans, Two-Horned galls and Flat-Topped Honeydew galls. Most of the galls were just starting to emerge and weren’t their full size yet.  Give them another week or two and they should be spectacular.

 Our group also found quite a few different orb-weaver spiders included Spotted Orb Weavers and Long-Jawed Orb Weavers. And we spotted a variety of butterflies, dragonflies and damselflies including: California Pipevine Swallowtail butterflies, a sleepy Buckeye butterfly, a Painted Lady butterfly, and a Tiger Swallowtail butterfly on the wing; Widow Skimmer dragonflies, Flame Skimmers, Four-Spotted Skimmers, Pond Skimmers and Blue Dasher dragonflies, plus several damselflies that looked like they’d just emerged and weren’t colored-up yet.

Along with imparting some of what I know to the class, I always learn something new on these field trips or add to knowledge I already have, so it’s always fun and exciting to me. I found two galls I hadn’t seen before and found out that even the experts were having trouble properly identifying them. One was a gall made by the Roll Gall Midge (whose species is known but not its genus) and it took the form of rolled edges along the leaves of Live Oak trees.  The other was an odd tubular “prick” on the leaf of a Valley Oak tree. At first, I thought I was just looking at a weird anomaly on the leaf, but then I saw the exact same structure repeated on leaves of different Valley Oaks, so I took some photos and looked it up when I got home.  Experts recognize it as a wasp-induced gall but they don’t know what species it’s associated with yet, and think it might be a second-generation gall for an already identified gall wasp.  Everything I found on it called it a “Leaf Gall Wasp” gall but with the species listed as “Unidentified”. How neat!

Gall of the UNIDENTIFIED Leaf Gall Wasp.

 As we were looking at some California Wild Grape vines, Greg asked for the term for the process by which tendrils wrap around things. None of us could remember it at the time. Of course, when I got home, it came to me: “THIGMOTROPSIM”! Cool word, huh?  You can read more about it here: http://biology.kenyon.edu/edwards/project/steffan/b45sv.htm

Another word that wouldn’t come to mind yesterday when we were out on the field trip… We saw a lot of damselflies that had apparently just emerged and weren’t “colored up” yet, and I couldn’t remember the term for that state.  It’s “TENERAL“: the state of an insect immediately after molting. At this time the insect’s exoskeleton has not hardened and it may be pale in color.

A “teneral” damselfly

A little further along our walk, some of the students noticed frothy ooze coming out of the base of a Valley Oak tree. It looked something like Sudden Oak Death (SOD) to me, but it was a lot more frothy, and I’d never seen SOD near the bottom of a tree before. So, I looked it up when I got home.

 The foam is from a bacterial infection in the tree called “Alcoholic Flux” or Foamy Canker. It usually affects trees in the summer that have been stressed in some way. Bacteria infects the tree and ferments some of the sap. The fermentation is expelled by the tree in a frothy slime that kind of smells like sour beer. Unlike SOD, alcoholic flux isn’t usually a permanent or fatal kind of infection. It’s usually gone by the end of the summer.

“Alcoholic Flux” or Foamy Canker on the base of a Valley Oak tree.

We’d also seen a lot of small gnats around the ooze, and I’m not sure, but I’m going to infer that they were getting buzzed on the fermented juice. Hah!

By 10:30 it was already too hot to keep people out in the sun, so the group broke up and we all headed back to our cars by different routes.

Species List:

  1. Acorn Woodpecker, Melanerpes formicivorus,
  2. Alcoholic Flux bacteria, Foamy Canker, Slime Flux,
  3. American Bullfrog, Lithobates catesbeianus,
  4. Belted Kingfisher, Megaceryle alcyon,
  5. Black Phoebe, Sayornis nigricans,
  6. Black Walnut, Juglans nigra,
  7. Blue Dasher, Pachydiplax longipennis,
  8. Blue Elderberry, Sambucus cerulea,
  9. Box Elder Tree, Acer negundo,
  10. Bull Thistle, Cirsium vulgare,
  11. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta,
  12. California Pipevine, Aristolochia californica,
  13. California Scrub Jay, Aphelocoma californica,
  14. California Wild Grape, Vitis californica,
  15. Canada Goose, Branta canadensis,
  16. Common Buckeye Butterfly, Junonia coenia,
  17. Common Merganser, Mergus merganser,
  18. Convoluted Gall Wasp, Andricus confertus,
  19. Eight-Spotted Skimmer, Libellula forensic,
  20. English Plantain, Ribwort, Plantago lanceolata,
  21. English Walnut, Juglans regia,
  22. Flame Skimmer, Libellula saturate,
  23. Flat-Topped Honeydew Gall Wasp, Dishopcaspis eldoradrnsis,
  24. Great Blue Heron, Ardea herodias,
  25. Green Shield Lichen, Flavoparmelia caperata,
  26. Hoary Rosette Lichen, Physcia aipolia,
  27. Indian Peafowl, Pavo cristatus,
  28. Interior Live Oak, Quercus wislizeni,
  29. Leaf Gall Wasp, Unidentified
  30. Painted Lady Butterfly, Vanessa cardui,
  31. Poison Oak, Toxicodendron diversilobum,
  32. Pumpkin Gall Wasp, Dryocosmus minusculus,
  33. Roll Gall Midge, Contarinia sp.,
  34. Spiny Turban Gall Wasp, Antron douglasii,
  35. Spotted Orb Weaver Spider, Neoscona crucifera,
  36. Sunburst Lichen, Xanthoria elegans,
  37. Two-Horned Gall Wasp, Dryocosmus dubiosus ,
  38. Valley Oak, Quercus lobata,
  39. Walnut Erineum Mite Gall, Aceria erinea,
  40. Western Pondhawk, Erythemis collocata,
  41. Western Tiger Swallowtail Butterfly, Papilio rutulus,
  42. Widow Skimmer Dragonfly, Libellula luctuosa,
  43. Woolly Aphid, Prociphilus sp.,

Lots of Critters… and a Beaver, 06-20-19

Up at 5:00 am again. I let the dog out to go potty and fed him his breakfast then headed over to the Effie Yeaw Nature Preserve for my weekly volunteer Trail-Walking gig.  It was a gorgeous 58° when I got to the preserve and was overcast, so it never got over about 68° while I was there.  Perfect walking weather.

CLICK HERE for the full album of photos.

One of the first things I saw was a Red-Shouldered Hawk carrying nesting materials. First she flew over my head, then she landed on a tree to get a better grip on the grasses she was holding before taking off again. These hawks only have one brood a year, but often work on the nest throughout the year to keep it clean.  It’s no uncommon for them to use the same nest over several season if the first nest is successful.  Later in my walk, I went by where I knew one of the hawks’ nest was and found a juvenile (fledgling) sitting out beside it squawking for its parents to come feed it. It was capable of feeding itself, but some of these young’uns milk the I’m-just-a-baby thing for quite a while. While it was near the nest, it was hard to get photos of it because it was backlit, but later it flew out and I was able to get a few better photos of it when it landed in a nearby tree.

There were a lot of deer out today, but I didn’t see any fawns. I DID see a couple of bucks, though, both of them still in their velvet, a 2-pointer and one with wonky antlers (one super-long one and one stumpy one). The 2-pointer was walking with a doe, and when I stood on the trail to take photos of them, he decided he didn’t like that.  He stepped right out toward me with a very determined look on his face. (Bucks can get real possessive of “their” does.) I knew he wouldn’t rush me and try to gore me because he was still in his velvet.  In that state, the antlers are super-sensitive to touch, and if he rammed me, he’d actually hurt himself.  But, he could still outrun me mash me with his hooves if he had a mind to, so I put my head down and back away.  That seemed to be enough of a submissive posture to him, and he returned to his doe.  As beautiful as the deer are, I have to remind myself that they’re still wild animals and will do whatever their instincts tell them to do – even in a nature park.

I heard and caught glimpses of several Nuttall’s Woodpeckers on my walk, but never got enough of a look at one to take its picture. Those birds enjoy teasing people, I swear. They’re really loud about announcing themselves in flight, but then hide from you once they land.

The wild plum and elderberry bushes are all getting their ripened fruit now. I saw birds eating some of the berries and came across an Eastern Fox Squirrel breakfasting on the plums.

Along the river, there was a small flock of Canada Geese feeding (bottoms-up in the shallow water) with a female Common Merganser fishing among them. They eat different things, so the geese were stirring up the water plants and the Merganser would grab any small fish that appeared. Unintentional mutualism.  While I was watching them, I saw something else in the water, swimming against the current and realized it was a beaver! 

I went down as close to the shore as I could – (It’s hard for me to clamber over the rocks.) – and tried to get some photos of it. Photo-taking was difficult because the beaver stayed close to shore and was obscured by the tules and other riverside plants and scrubby trees. When it got into less cluttered spots, in was in the shade, and my camera had trouble focusing between the dark and the reflections on the water.  So, I walked ahead of where I thought the beaver was heading to a sunnier spot and waited for it… and waited for it… and then I heard a splash and realized it had swum under the water right past me and came up in the river behind me.  Hah!  Sneaky Pete!  

I walked for about 4 hours and then headed back home.

Species List:

  1. American Bullfrog, Lithobates catesbeianus,
  2. Bewick’s Wren, Thryomanes bewickii,
  3. Black Harvester Ant, Messor pergandei,
  4. Black Phoebe, Sayornis nigricans,
  5. Blue Oak, Quercus douglasii,
  6. Bush Katydid nymph, Scudderia pistillata,
  7. California Black Walnut, Juglans californica,
  8. California Mugwort, Artemisia douglasiana,
  9. California Poppy, Eschscholzia californica,
  10. California Scrub Jay, Aphelocoma californica,
  11. California Towhee, Melozone crissalis,
  12. California Wild Grape, Vitis californica,
  13. California Wild Plum, Prunus subcordata,
  14. Canada Goose, Branta canadensis,
  15. Chinese Privet, Ligustrum sinense,
  16. Coffeeberry, California Buckthorn, Frangula californica,
  17. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
  18. Coyote Mint, Monardella villosa,
  19. Coyote, Canis latrans,
  20. Desert Cottontail, Sylvilagus audubonii,
  21. Doveweed, Turkey Mullein, Croton setigerus,
  22. Eastern Fox Squirrel, Sciurus niger,
  23. Elegant Clarkia, Clarkia unguiculata,
  24. English Plantain, Ribwort, Plantago lanceolata,
  25. European Praying Mantis, Mantis religiosa,
  26. Evening Primrose, Oenothera biennis,
  27. Goldwire, Hypericum concinnum,
  28. Greater Periwinkle, Vinca major,
  29. Green Lacewing, Chrysoperla carnea,
  30. House Wren, Troglodytes aedon,
  31. Italian Thistle, Carduus pycnocephalus,
  32. Leafhopper Assassin Bug, Zelus renardii,
  33. Moth Mullein, Verbascum blattaria,
  34. Mourning Dove, Zenaida macroura,
  35. North American Beaver, Castor canadensis,
  36. Northern Yellow Sac Spider, Cheiracanthium mildei,
  37. Nuttall’s Woodpecker, Picoides nuttallii,
  38. Pink Grass, Windmill Pink, Petrorhagia dubia,
  39. Poison Oak, Toxicodendron diversilobum,
  40. Red-Shouldered Hawk, Buteo lineatus,
  41. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
  42. Rock Shield Lichen, Xanthoparmelia sp.,
  43. Rusty Tussock Moth, Orgyia antiqua,
  44. Saw-whet Owl, Sophia, Aegolius acadicus,
  45. Showy Milkweed, Asclepias speciosa,
  46. Spanish Clover, Acmispon americanus,
  47. Spotted Towhee, Pipilo maculatus,
  48. Sudden Oak Death pathogen, Phytophthora ramorum,
  49. Turkey Vulture, Cathartes aura,
  50. Western Drywood Termite, Incisitermes minor,
  51. Winter Vetch, Vicia villosa,
  52. Wood Duck, Aix sponsa,
  53. Wooly Mullein, Great Mullein, Verbascum thapsus,
  54. Yarrow, Achillea millefolium,
  55. Yellow Starthistle, Centaurea solstitialis

Looking for Willow Galls, 06-09-19

I got up around 5:30 this morning, and after giving the dog his breakfast, I headed over to the American River Bend Park.  I was in search of willow galls and found oh-so-much more.  The weather behaved itself in the morning hours.  There was a breeze by the river, so it didn’t get too warm for me to walk until around 10:30.  So it was a nice morning. 

First I tried walking along the river at the first pullout, but the water was too high there, so I took a trail that brought me out onto the sandy area close to the bridge.  Lots of willows there, and I found the pinecone-like galls of the midge Rabdophaga strobiloide. They start out looking like little round balls of tightly packed leaves. Then they develop a “beak” that makes them look like pinecones. Each gall contains one midge larva. When the larva matures into an adult midge, the midge escapes the gall through the tip of the beak.

While I was walking through that area, I could hear the nattering of quail in the underbrush, but they kept themselves well-hidden, so I never did see them or was able to get a photo of them. I did get shots of a Spotted Towhee and a House Wren, though. I walked along that part of the river for a little while and then headed back to where I’d parked the car at the pullout.  At one point, the trail was blocked by a fallen tree. My trying to navigate over that obstacle was mildly humorous. Sit on one part of the trunk, lift my leg up, throw it over the other part of the trunk, try to get that foot to touch the ground, then shift my weight, and try to drag my other leg up over the trunk… Phew!

Once I got back to the car, I drove further int the park, got out, and continued my walk along the trail that runs along the riverside, but about 10 feet above the level of the water. I found a few Pipevine Swallowtail caterpillars and saw some of the butterflies flitting near the top of the trees. When the caterpillars ready to build their chrysalis, they attach their back feet to a tree (or other substrate) with silk, and then build a silk sling-shot-like thing that holds them upright but at a slight angle from the tree. (The silk is pulled from spinnerets on the sides of the body.) Then the caterpillar leans back and just hangs there in a kind of torpor as the chrysalis forms UNDER its skin. Once the chrysalis is formed, the caterpillar sheds its skin — including its face — and waits for metamorphosis to begin.

I also found some of their chrysalises. One was so new; it was still bright green. There stills seems to be a LOT fewer than I’m used to seeing out there, though.

CLICK HERE to see the full album of photos.

At one spot, I stopped to watch a pair of House Wrens flying all over the place, the male singing brightly while he flew. They stopped off a few times at a cavity in an oak tree, only to be run off by some Tree Swallows.  Apparently, the Swallows had already claimed the cavity and were trying to keep the Wrens from setting up house there.  I got quite a few good shots of the Swallows.  The Wrens, not so much…

 

A nice surprise was seeing a female Common Merganser swimming near the shore with her three red-headed little ducklings. The mom was swimming up-stream which can be hard on the babies when the current is strong, so they sometimes swim in her wake… or just hop onto her back!  In one photo you can see the mom swimming with her face in the water. This is a typical fishing technique used by these birds; she’s seeing if there’s anything tasty underneath her.  These ducks are sometimes referred to as “saw-bills” for the serrated edges along the rim of their bill. Unlike Mallards, Mergansers are “diving” ducks, not “dabbling” ducks.

I walked for about four hours and then headed back home.  But another surprise happened when I was driving out of the park. I saw something moving near the edge of the road and stopped to get a better look. I realized it was a female Wild Turkey, that was sitting down in the dirt and dried gas.  She was giving herself a dust bath (to rid her feathers of mites). The surprise was when, right behind her, her baby (a little fledgling called a poult) stood up!  Mama turkeys are very protective of their babies, and when the mom realized I’d seen her kid, she got up and hurried him away from the road.

 Species List:
Acorn Woodpecker, Melanerpes formicivorus,
Asian Ladybeetle, Harmonia axyridis,
Black Locust, Robinia pseudoacacia,
Blue Elderberry, Sambucus cerulea,
Bur Chervil, Anthriscus caucalis,
Bush Katydid nymph, Scudderia texensis,
California Pipevine Swallowtail, Battus philenor hirsuta,
California Pipevine, Aristolochia californica,
California Quail, Callipepla californica,
California Scrub Oak, Quercus berberidifolia,
California Sycamore, Platanus racemose,
California Wild Grape, Vitis californica,
Common Merganser, Mergus merganser,
Coyote Brush Bud Gall midge, Rhopalomyia californica
Coyote Brush Stem Gall moth, Gnorimoschema baccharisella,
Darkling Beetle, Pinacate Beetle, Eleodes obscurus,
Deerweed, Acmispon glaber,
Elegant Clarkia, Clarkia unguiculata,
English Plantain, Ribwort, Plantago lanceolata,
European Starling, Sturnus vulgaris,
Fremont Cottonwood, Populus fremontii,
Goldenrod Bunch Gall, Goldenrod Floret Gall Midge, Solidago canadensis,
Goldwire, Hypericum concinnum,
Hoptree, Skunk Bush, Ptelea trifoliata,
House Wren, Troglodytes aedon,
Interior Live Oak, Quercus wislizeni,
Interior Sandbar Willow, Salix interior,
Long-Jawed Orb Weaver, Tetragnatha sp.,
Mallard, Anas platyrhynchos,
Miniature Lupine, Lupinus bicolor,
Moth Mullein, Verbascum blattaria,
Mourning Dove, Zenaida macroura,
Narrowleaf Willow, Salix exigua,
Northern California Black Walnut, Juglans hindsii,
Old Live Oak Gall Wasp Gall, Callirhytis quercuspomiformis,
Oregon Ash, Fraxinus latifolia,
Oystershell Scale Insect, Ceroplastes sp,
Rattlesnake Grass, Big Quaking Grass, Briza maxima,
Red Mulberry, Morus rubra,
Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
Rusty Tussock Moth caterpillar, Orgyia antiqua,
Spotted Towhee, Pipilo maculatus,
Sweet Fennel, Foeniculum vulgare,
Telegraph Weed, Heterotheca grandiflora,
Valley Oak, Quercus lobata
Variable Flatsedge, Cyperus difformis,
Wand Mullein, Verbascum virgatum,
Western Bluebird, Sialia mexicana,
Western Fence Lizard, Sceloporus occidentalis,
Western Goldenrod, Euthamia occidentalis,
Western Leaf-Footed Bug eggs, Leptoglossus zonatus
White Alder, Alnus rhombifolia,
White Horehound, Marrubium vulgare,
Willow Pinecone Gall midge, Rabdophaga strobiloides,
Willow Stem Gall midge, Rabdophaga rigidae,
Winter Vetch, Vicia villosa,
Wooly Mullein, Verbascum thapsusm
Yellow Starthistle, Centaurea solstitialis,
Yellow Water Iris, Yellow Flag, Iris pseudacorus,

Trying to Beat the Heat on 06-05-19

I got up around 5:00 am this morning so I could get out to the Effie Yeaw Nature Preserve before it got too hot outside. The predicted high for today was 100°. When I got to the preserve, it was already about 67° outside.

Just seconds after I arrived, my CalNat graduate/friend, Roxanne M., showed up to join me and so did “The Other Mary”, Mary M., another volunteer trail walker at Effie Yeaw.  She brought a small bag for me filled with blackberries from her yard. I thought that was so nice of her.

The three of us walked for about 3 hours, but we cut out walk short because it was humid and hot at the river. When we left, it was already about 80°– and it was only a little after 9 o’clock. Pleh!

We weren’t expecting to see a lot, because nature is kind of in a transition period right now. We’re waiting for mammal babies to be born and insects to start showing themselves.  And, we didn’t see a whole lot, but Roxanne and I can always find something to look at and focus on.

Roxanne is doing a seed-collecting thing right now for the naturalist class, and so she stops at different plants to see what kind of seeds they have on them and how the seeds might be disbursed.  She took on this project on all by herself and is volunteering all the time it’s taking her to collect specimens and ID the plants.  I’m so proud of her!

CLICK HERE for the album of photos.

On our walk we saw a group of about four deer including a young buck in his velvet and a very pregnant doe. And later on, we also saw a bunch of baby rusty-headed Common Mergansers zooming down the riverside with their mom. It was so cute to see some of the babies swimming with their face down in the water, like the adults do, looking for things to eat.  Roxanne, The Other Mary and I all tried to get photos of them, but they moved so-so fast, it was really hard!

I also stopped to get some video of a hive of Common Black Ants (yeah, they’re really called that) carrying their larvae from one nest to another — most likely because the old nest was compromised in some way (infested with fungus, collapsing, etc.).

Moving the eggs and babies around can be really risky because they make for tasty treats for other insects and some birds, so the workers who carry them (very gently in their jaws) have to move really fast and know right where they’re going.

Queen ants are pretty awesome. They control the sex of all of their offspring (only creating males when it’s time for nuptial flights; ost ants you see are females); they can live for up to 15 (some say 30) years, and only mate during their nuptial flights… which means they can mate with several males during that short-term flight period, and then hang onto the sperm for the rest of their entire lives.

On our way out of the preserve we noticed leaves with circular cutouts on them. They’re made by Leafcutting Bees (Megachile sp.), a kind of native bee that lives in cavities. They use the bits they cut out of the leaves to line their tube-like nests and build a neat row of individual compartments, in each of which they’ll form a small doughy mound of pollen and nectar. On top of each of these mounds, the bee will lay a single egg.

Mother leafcutters can control the gender of their offspring, and often lay the eggs of their female offspring in the back of the tube-nest and the males in the front. This way, if the nest is invaded by a bird or other insects, it’s the males that will die first, leaving the females protected.

Although they’re solitary bees and don’t produce a lot of offspring, leafcutters are great pollinators. You can encourage them to pollinate your garden by building nesting boxes, called “bee condos”, for them in your yard. Here is a guide from the Xerces Society on how to do that: http://ow.ly/MhVf50uygX1.

Species List:

  1. Acorn Woodpecker, Melanerpes formicivorus,
  2. Asian Ladybeetle, Harmonia axyridis,
  3. Black Phoebe, Sayornis nigricans,
  4. Blessed Milk Thistle, Silybum marianum,
  5. Bullock’s Oriole, Icterus bullockii,
  6. California Brodiaea, Brodiaea californica,
  7. California Ground Squirrel, Otospermophilus beecheyi,
  8. California Poppy, Eschscholzia californica,
  9. California Scrub Jay, Aphelocoma californica,
  10. Canada Goose, Branta canadensis,
  11. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
  12. Common Black Ant, Lasius niger,
  13. Common Merganser, Mergus merganser,
  14. Coyote Brush, Baccharis pilularis
  15. Coyote Mint, Monardella villosa,
  16. Dogtail Grass, Cynosurus echinatus,
  17. Elegant Clarkia, Clarkia unguiculata,
  18. English Plantain, Ribwort, Plantago lanceolata,
  19. European Starling, Sturnus vulgaris,
  20. Goldwire, Hypericum concinnum,
  21. Green Shield Lichen, Flavoparmelia caperata,
  22. House Wren, Troglodytes aedon,
  23. Interior Live Oak, Quercus wislizeni,
  24. Italian Thistle, Carduus pycnocephalus,
  25. Leaf-Cutter Bee, Megachile,
  26. Long-Jawed Orb-Weaver Spider, Tetragnatha elongate,
  27. Mock Orange, Lewis’s Mockorange, Philadelphus lewisii,
  28. Moss, Bryum Moss, Bryum capillare,
  29. Nuttall’s Woodpecker, Picoides nuttallii,
  30. Oak Titmouse, Baeolophus inornatus,
  31. Oregon Ash, Fraxinus latifolia,
  32. Pacific Bent Grass, Agrostis avenacea,
  33. Praying Mantis, European Mantis, Mantis religiosa,
  34. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
  35. Showy Milkweed, Asclepias speciosa,
  36. Spicebush, Calycanthus occidentalis,
  37. Turkey Vulture, Cathartes aura,
  38. Valley Oak, Quercus lobata,
  39. Valley x Blue Oak, Quercus lobata x douglasii,
  40. Variable Flatsedge, Cyperus difformis,
  41. Wavy-Leaf Soap Plant, California Soaproot, Chlorogalum pomeridianum,
  42. Western Fence Lizard, Sceloporus occidentalis,
  43. White Alder, Alnus rhombifolia,
  44. White Horehound, Marrubium vulgare,
  45. Winter Vetch, Hairy Vetch, Vicia villosa,
  46. Yellow Water Iris, Yellow Flag, Iris pseudacorus,

At the Sacramento and Colusa Wildlife Refuges, 05-06-19

Certified California Naturalist, Roxanne Moger and I went out to the Sacramento National Wildlife Refuge around 6:00 am this morning. The weather was beautiful today, but there wasn’t a lot to see at the preserve. We’re kind of in between seasons, so the large flocks of birds have all left, but the insects (like dragonflies, damselflies, and orb-weaver spiders) haven’t arrived yet. We did see swarms of Painted Lady butterflies and some Cabbage White, but none of the other species normally seen there in the late spring/early summer.

Roxanne did all the driving, but we stopped a couple of time to get out of the car and walk parts of the trail or explore the boundaries of the park-and-stretch areas. Some of the vernal pools on the site were in bloom: all golden yellow and purple with Goldfields and Downingia. Just beautiful.

Although the species list at the end of the day wasn’t as long or as varied as I’d like, I did like the fact that I saw a few things I’d never seen before and learned more about some species than I’d known before. That’s what really makes these outings fun.

A large fly landed on the passenger side mirror of the car partway through the auto-tour and at first I thought it was a Robber Fly (those guys are pretty big). We were both intrigued by the fly’s huge goggle-like eyes and his tenaciousness.  He held onto that mirror for quite a long time.

When I got home, I looked up the fly to see if I could find its scientific name and found that it was actually a male Striped (or Lined) Horsefly, Tabanus lineola. I’d never seen one before. And, of course, once I find something new to me, I have to research it more.  Never having encountered a Horsefly before, I was surprised to learn that although the males drink nectar, the females drink blood (usually from large mammals like livestock). She had scissor-like mouth parts that slice into the skin so she can get to the blood. This species is usually found along the east coast and Gulf of Mexico, so it was something of a surprise to find it here… assuming I got the ID correct.

We also got to see a male Red-Winged Blackbird flaring his epaulets at a female, and a pair of Brown-Headed Cowbirds performing what we thought was courtship behavior.  The two birds sat across from one another, then one ruffled its feathers, opened its wings a bit and bowed down at the other, and the other responded in kind.

Roxanne and I inferred the behavior was “courtship” but, from what I read, after I got home, what we were seeing was actually two males trying to outdo one another in a machismo contest.  Apparently, the females don’t respond well to the males’ bows, which they see as aggressive, so the males only bow to one another. (You can read more here.)  The males open their wings to one another, and to females, to show how mature they are. Juveniles have pale markings on the inside of the wings.

You can see the video snippet I took of the birds HERE.

CLICK HERE for the full album of photos.

And we found a couple of Black Phoebe nests, one stuffed full of babies who were almost fully fledged. They were stacked up, one on top of the other, with their tails sticking out over the edge of the nest. And toward the end of the auto tour route we came across a dead tree where there was a Western Meadowlark, a Red-Winged Blackbird and a tiny Song Sparrow all singing their respective songs.

We caught glimpses of American Goldfinches and Bullock’s Orioles, and hear Bitterns, but didn’t see any. One oddity was sighting a Mute Swan in the permanent wetlands area. That was odd because swans hardly ever go into the refuge, and Mute Swans are actually an invasive species. Unlike the Tundra Swans, the Mute Swans are super-aggressive and destroy the habitat they live in by ripping up water-plants from the roots.

When we were done at the Sacramento refuge, we decided to go over to the Colusa National Wildlife Refuge to show Roxanne the day-roost of the Black-Crowned Night Herons at the end of the auto-tour there. We were astonished to discover that the auto-tour there was roped off so no one could get to it… but the rope and signage was only visible AFTER you entered the refuge and started driving down the route. Stupid. They should have put the signs on the front gate or in the parking area.  A “manager” who showed up a little while after did, said that the auto-route was shut down because they were short handed and couldn’t patrol it well enough. Sad.

So, we didn’t do that tour and instead walked around a little bit in the native flower garden they have near the restroom facility.  Along part of a path near the garden, Roxanne found some galls we’d never seen before: the gall of the Elm Balloon-Gall Aphid, Eriosoma lanuginosum.

According to what I’ve read, the galls are initiated by a “fundatrix”, a parthenogenetic female aphid whose presence causes an extreme enlargement of the soft cell tissue on one side of the leaf. The galls are hollow and feel rubbery. They start out green and are covered with fine white hairs (which we saw) and turn brown as they age.

Inside the gall the fundatrix has her babies which are wingless and yellow until they mature. There can also be second generation aphids, called “alates” (usually winged individuals) which are dark green to black and wax powdered. Not all of the adults grow wings, however, and wing-growth seemed to be associated to crowding inside the galls, a short supply of food, and/or changes in the environment. Nature is so cool!

After walking around a bit, we headed back home to Sacramento and got there around 3:00 pm.

Species List:

1. American Avocet, Recurvirostra americana,
2. American Bittern, Botaurus lentiginosus,
3. American Coot, Fulica americana.
4. American Crow, Corvus brachyrhynchos,
5. American Goldfinch, Spinus tristis,
6. American Robin, Turdus migratorius,
7. Anna’s Hummingbird, Calypte anna,
8. Annual Yellow Sweet Clover, Melilotus indicus,
9. Arches Moth, Habrosyne sp.
10. Bird’s Foot Trefoil, Lotus corniculatus,
11. Black Phoebe, Sayornis nigricans,
12. Black-Tailed Jackrabbit, Lepus californicus,
13. Blessed Milk Thistle, Silybum marianum,
14. Blue Elderberry, Sambucus cerulea,
15. Bristly Oxtongue, Helminthotheca echioides,
16. Brown-Headed Cowbird, Molothrus ater,
17. Bullock’s Oriole, Icterus bullockii,
18. Bur Clover, Burr Medic, Medicago polymorpha,
19. California Flannelbush, Fremontodendron californicum,
20. California Ground Squirrel, Otospermophilus beecheyi,
21. California Poppy, Eschscholzia californica,
22. California Wild Rose, Rosa californica,
23. Canada Goose, Branta canadensis,
24. Cinnamon Teal, Anas cyanoptera,
25. Clark’s Grebe, Aechmophorus clarkia,
26. Cleveland Sage, Salvia clevelandii,
27. Common Mustard, Brassica rapa,
28. Convergent Lady Beetle, Hippodamia convergens,
29. Curly Dock, Rumex crispus,
30. Damselfly, Pacific Forktail, Ischnura cervula, (dots on thorax)
31. Damselfly, Sooty Dancer, Argia lugens, (no blue tip; rings around segments)
32. Desert Cottontail, Sylvilagus audubonii,
33. Dogtail Grass, Cynosurus echinatus,
34. Elm Balloon-Gall Aphid, Eriosoma lanuginosum,
35. Eurasian Collared Dove, Streptopelia decaocto,
36. Field Elm Tree, Smooth-Leaf Elm, Ulmus Minor,
37. Foothills Penstamon, Penstemon heterophyllus,
38. Foxtail Barley, Hordeum murinum ssp. glaucum,
39. Fremont Cottonwood Tree, Populus fremontii,
40. Fuller’s Teasel, Wild Teasel, Dipsacus fullonum,
41. Goldfields, Contra Costa Goldfields, Lasthenia conjugens,
42. Great Egret, Ardea alba,
43. Greater White-Fronted Goose, Anser albifrons,
44. Greenbottle Fly, Lucilia sericata,
45. Himalayan Blackberry, Rubus armeniacus,
46. Hood Canarygrass, Phalaris paradoxa,
47. Hoover’s Downingia, Hoover’s Calicoflower, Downingia bella,
48. House Finch, Haemorhous mexicanus,
49. House Sparrow, Passer domesticus,
50. Jimson Weed, Datura stramonium,
51. Killdeer, Charadrius vociferous,
52. Large Oxtongue Aphid, Uroleucon picridis,
53. Marsh Wren, Cistothorus palustris,
54. Mourning Dove, Zenaida macroura,
55. Mute Swan, Cygnus olor,
56. Narrowleaf Milkweed, Asclepias fascicularis,
57. Northern Paper Wasp, Polistes fuscatus,
58. Northern Pintail, Anas acuta,
59. Northern Shoveler, Anas clypeata,
60. Oleander Aphid, Aphis nerii,
61. Pacific Pond Turtle, Western Pond Turtle, Actinemys marmorata,
62. Pacific Tree Frog, Chorus Frog, Pseudacris regilla,
63. Painted Lady Butterfly, Vanessa cardui,
64. Pied-Billed Grebe, Podilymbus podiceps,
65. Plantain, Ribwort, Plantago lanceolata,
66. Poison Hemlock, Conium maculatum,
67. Purple Finch, Haemorhous purpureus,
68. Purple Needle Grass, Stipa pulchra,
69. Rabbit Tail Grass,Hare’s Tail Grass, Lagurus ovatus,
70. Red-Tailed Hawk, Buteo jamaicensis,
71. Red-Winged Blackbird, Agelaius phoeniceus,
72. Rush, California Bulrush, Schoenoplectus californicus,
73. Sedge, Pennsylvania Sedge, Carex pensylvanica
74. Showy Milkweed, Asclepias speciose,
75. Silverpuff, Microseris acuminata,
76. Snow Goose, Chen caerulescens,
77. Song Sparrow, Melospiza melodia,
78. Striped Horsefly, Tabanus lineola,
79. Tule, Schoenoplectus acutus,
80. Turkey Vulture, Cathartes aura,
81. Valley Popcorn Flower, Plagiobothrys canescens,
82. Varied Carpet Beetle, Anthrenus verbasci,
83. Variegated Meadowhawk Dragonfly, Sympetrum corruptum,
84. Western Fence Lizard, Sceloporus occidentalis,
85. Western Kingbird, Tyrannus verticalis,
86. Western Meadowlark, Sturnella neglecta,
87. Willow, Gooding’s Willow, Salix gooddingii