Tag Archives: acorn

Blue Oak Galls and Other Stuff, 07-09-19

I headed out to the Effie Yeaw Nature Preserve.  It was about 56° when I got there, but it was up to around 75° when I left.  When I got there, I was happy to see my friend and fellow-naturalist Roxanne there, too. She’s helping me out with the Monarch monitoring facet of my volunteer work at the preserve. I really appreciate her help, too, because it makes the somewhat tedious process of looking over each milkweed plant go more quickly. 

Still no sign of Monarch eggs or caterpillars, and what was odd was we didn’t see much in the way of other insects either.  We did find some spiders (including a White Crab Spider and a little Jumping Spider), some aphids, a single praying mantis, and a couple of beetles but that was it.  The lack of critters was rather surprising and made me wonder if the area had been sprayed or something.  We worked on the plants for about 90 minutes and then went for a short walk through the preserve.

 Although we heard a lot of different birds, we didn’t see any Wild Turkeys today, which was very unusual. They’re normally all over the place. We came across two bucks but no does and no fawns. Both bucks were in their velvet.  One was a nervous youngster who was just getting his first antlers (a “spike buck”), and the other was a laid-back 3-pointer who was just lying in the grass on the side of the trail.  He kept an eye on us but didn’t move from his spot. I guess he figured we were no match for him, so we weren’t much of a threat.  He was gorgeous. And because he was so still, we were able to get quite a few good photos of him.

CLICK HERE to see the album of photos.

The most exciting thing to me that we came across on our walk was sighting a few different species on a Blue Oak tree (Quercus douglasii) along the River Trail.  It had both Saucer Galls (Andricus gigas) and newly budding Crystalline Galls (Andricus crystallinus). The saucers start out flat and then form cups (some with smooth edges and some with serrated edges). The Crystalline Galls start out like tiny dark-pink urns and then swell up and get their sparkly spines. We hadn’t seen any galls at all on the “Frankenstein” hybrid tree further up the trail, so finding the galls on the Blue Oak by the river was rewarding. 

It was nice to see that this particular Blue Oak was also getting acorns on it. These oaks don’t produce acorns in drought years, and when they do produce acorns, they’ll produce a lot one year (a “mast” year) and then produce far fewer for the next two or three years.  So, as I said, it was nice to see this one with acorns all over it.  (The acorns usually take a year to develop.) Blue Oaks are also endemic to California, which means they’re found here and nowhere else on the planet.  It’s also one of the oak trees that is immune to the fungus that causes Sudden Oak Death.  Very cool trees.

Oh, and we found a Treehopper – but it jumped away before I could get a photo of it.  Those things are sooooooo weird-looking with their hunched backs. The one we saw was a Buffalo Treehopper (Stictocephala bisonia): mostly green with some burnished gold edges on it.

We walked the trails for about 2 hours.

Species List:

  1. Blue Oak, Quercus douglasii,
  2. Brass Buttons, Cotula coronopifolia,
  3. Buffalo Treehopper, Stictocephala bisonia,
  4. California Mugwort, Artemisia douglasiana,
  5. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta,
  6. California Praying Mantis, Stagmomantis californica,
  7. California Wild Grape, Vitis californica,
  8. Canada Goose, Branta canadensis,
  9. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
  10. Common Buttonbush, Cephalanthus occidentalis,
  11. Common Merganser, Mergus merganser,
  12. Common Snowberry, Symphoricarpos albus,
  13. Convergent Ladybeetle, Hippodamia convergens.
  14. Crystalline Gall Wasp, Andricus crystallinus,
  15. Desert Cottontail, Sylvilagus audubonii,
  16. European Honeybee, Apis mellifera,
  17. Flax-Leaf Horseweed, Erigeron canadensis,
  18. Green Lacewing, Chrysoperla carnea,
  19. House Wren, Troglodytes aedon,
  20. Italian Thistle, Carduus pycnocephalus,
  21. Jumping Spider, Phidippus sp.,
  22. Mallard, Anas platyrhynchos,
  23. Moth Mullein, Verbascum blattaria,
  24. Mushroom Headed Mayfly, Small Minnow Mayfly, Callibaetis ferrugineus ferrugineus,
  25. Oak Titmouse, Baeolophus inornatus,
  26. Occidental Grasshopper, Trimerotropis occidentalis,
  27. Oleander Aphid, Aphis nerii,
  28. Poison Oak, Toxicodendron diversilobum,
  29. Red-Shouldered Hawk, Buteo lineatus,
  30. Saucer Gall Wasp, Andricus gigas,
  31. Showy Milkweed, Asclepias speciosa,
  32. Sweet Pea, Lathyrus odoratus,
  33. Tarweed, Common Madia, Madia elegans,
  34. Wavy-Leaf Soap Plant, Soap Root, Chlorogalum pomeridianum,
  35. Western Fence Lizard, Sceloporus occidentalis,
  36. White Alder, Alnus rhombifolia,
  37. White Crab Spider, Misumessus sp.

My First Glimpse of Fawns This Year, 07-02-19

I got up around 5:30 this morning so I could get over to the Effie Yeaw Nature Preserve and begin my monitoring of my milkweed plot there for evidence of Monarch Butterflies. I finished that (with the help of my friend and co-naturalist Roxanne Moger) around 8:30.

It was still relatively cool outside, so Roxanne and I decided to put our tools back into our car and walk for a little while.  We came across some cooperative squirrels and a Desert Cottontail rabbit, and also checked out the tree where I’d seen the feral beehive earlier.  There were about three times as many bees at the spot, so I’m assuming the queen has decided to set up shop there.

 The surprise sighting was coming across another doe – with twin fawns!  She was keeping them well-hidden in the shade and tall grass, but we were able to catch glimpses of them. And we couldn’t help but chuckle when the babies went stotting through the grass with mom chasing after them.  They’re so tiny but soooo active! They’re the first fawns I’ve seen this year and that’s always exciting.

As we were leaving the preserve, I could hear a Ground Squirrel’s alarm call and looked around to see if I could spot what the trouble might be. I saw movement overhead and spotted an adult Red-Shouldered Hawk fly overhead. It landed in a nearby tree and then sat there for quite a while, so we were able to get quite a few photos of it.  So, even though our walk was only a single loop, we got to see quite a bit… which is always fun.

An adult Red-Shouldered Hawk, Buteo lineatus

CLICK HERE for the album of photos.

We walked for about 2 hours before calling it quits and going to breakfast.

Species List:

  1. Asian Ladybeetle, Harmonia axyridis,
  2. Bewick’s Wren, Thryomanes bewickii,
  3. Black Walnut Erineum Mite gall,
  4. California Bay, Umbellularia californica,
  5. California Black Walnut, Juglans californica,
  6. California Ground Squirrel, Otospermophilus beecheyi,
  7. California Mugwort, Artemisia douglasiana,
  8. California Scrub Jay, Aphelocoma californica,
  9. California Towhee, Melozone crissalis,
  10. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
  11. Common Green Lacewing, Chrysoperla carnea,
  12. Coyote Brush, Baccharis pilularis,
  13. Coyote Mint, Monardella villosa,
  14. Crown Whitefly, Aleuroplatus coronata,
  15. Desert Cottontail, Sylvilagus audubonii,
  16. Eastern Fox Squirrel, Sciurus niger,
  17. European Honeybee, Apis mellifera,
  18. European Praying Mantis, Mantis religiosa,
  19. Feral Honeybees, Apis mellifera,
  20. Goldwire, Hypericum concinnum,
  21. Great Horned Owl, Bubo virginianus,
  22. Green Leafhopper, Empoasca sp.,
  23. Green Stink Bug, Chinavia hilaris,
  24. Interior Live Oak, Quercus wislizeni,
  25. Jumping Spider, Hentzia sp.,
  26. Lords-And-Ladies, Arum maculatum,
  27. Meadow Spittlebug, Philaenus spumarius,
  28. Oak Titmouse, Baeolophus inornatus,
  29. Oleander Aphid, Aphis nerii,
  30. Pumpkin Gall Wasp, Dryocosmus minusculus,
  31. Red Mite, Spider Mite, Tetranychus urticae,
  32. Red-Shouldered Hawk, Buteo lineatus,
  33. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
  34. Showy Milkweed, Asclepias speciosa,
  35. Spotted Lady’s Thumb, Persicaria maculosa,
  36. Spotted Towhee, Pipilo maculatus
  37. Trashline Orb Weaver Spider, Cyclosa conica,
  38. Twenty-spotted Lady Beetle, Psyllobora vigintimaculata,
  39. Valley Oak, Quercus lobata,
  40. Yarrow, Achillea millefolium,
  41. Yellow Sac Spider, Cheiracanthium mildei,

Two Nesting Doves and a Squirrel Alarm, 04-02-19

I got up around 6:15 this morning and headed out to the Effie Yeaw Nature Preserve again. It was overcast and drizzly on and off all day and was about 51° when I got to the preserve.

I was joined there by two of my naturalist students, Johannes T. and Kelli O.  Whenever I take students out, I’m more focused on trying find things for them to see, and explaining what they’re looking at, than I am on trying to get photos. So, I don’t have as many photos to share this time as I usually do. Johannes and Kelli seemed to be interested in everything and had lots of personal stories to share about their own outings and hiking adventures.

CLICK HERE for the album of photos.

We saw several small herds of deer; many of them hunkered down in the grass waiting for the rain to pass.  We also came across a California Ground Squirrel munching on a large peeled acorn, and another one standing on a log giving off an alarm call. That one looked soaked and I wondered if maybe his burrow got flooded.  And we came across a small dead mole on the trail – and they get drowned out often by the river.

We also saw an Eastern Fox Squirrel ripping the tules out of one of the tule huts on the grounds. Hah!  Wutta brat!

At one point along the trail we saw a California Towhee… and then a Spotted Towhee landed on the same part of the trail, so we got to see them side by side, and see how different their field markings are.

Around that same area, we saw a male Mourning Dove flying by with some long grasses in its beak and followed it to where it handed off the grasses to its mate, sitting on her nest on an odd flattened part of a bent branch.  So cool.  The nest is visible from the trail, so I’ll have to keep an eye on it; see if they get any babies.  Mourning Doves can have up to six broods a year!

At the pond near the nature center, there was the paid of Mallards sleeping on log.  That’s a bonded pair, and I’ve seen them every week for the past several weeks; they like resting there.

We walked for about 3 ½ hours and then went on our separate ways.

Species List:

1. Acorn Woodpecker, Melanerpes formicivorus,
2. Asian Ladybeetle, Multicolored Asian Lady Beetle, Harmonia axyridis,
3. Bay Laurel, Laurus nobilis,
4. Black Walnut, Juglans nigra,
5. Blue Dicks, Dichelostemma capitatum,
6. Blue Oak, Quercus douglasii,
7. Broad-Footed Mole, Scapanus latimanus,,
8. Brown Jelly Fungus, Jelly Leaf, Tremella foliacea
9. Buck Brush, Ceanothus cuneatus,
10. Bush Lupine, Lupinus albifrons,
11. California Ground Squirrel, Otospermophilus beecheyi,
12. California King Snake, Lampropeltis getula californiae,
13. California Manroot, Marah fabaceus,
14. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta,
15. California Pipevine, Aristolochia californica,
16. California Scrub Jay, Aphelocoma californica,
17. California Towhee, Melozone crissalis,
18. Chanterelle mushrooms, Cantherellus sp.,
19. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
20. Common Jelly Spot fungus, Dacrymyces stillatus,
21. Coyote Brush, Baccharis pilularis,
22. Deer Shield Mushroom, Pluteus cervinus,
23. Desert Cottontail, Sylvilagus audubonii,
24. Dog Vomit Slime Mold, Fuligo septica,
25. Dryad’s Saddle Polypore, Polyporus squamosus,
26. Eastern Fox Squirrel, Sciurus niger,
27. False Turkey Tail fungus, Stereum hirsutum,
28. Fringe Pod, Thysanocarpus curvipes ssp. elegans,
29. Gold Dust Lichen, Chrysothrix candelaris,
30. Great Horned Owl, Bubo virginianus,
31. Green Shield Lichen,Flavoparmelia caperata,
32. House Wren, Troglodytes aedon,
33. Interior Live Oak, Quercus wislizeni,
34. Lace Lichen, Ramalina menziesii,
35. Mallard, Anas platyrhynchos,
36. Mazegill Fungus, Daedalea quercina,
37. Miniature Lupine, Lupinus bicolor,
38. Mourning Dove, Zenaida macroura,
39. Pacific Gopher Snake, Pituophis catenifer,
40. Periwinkle, Vinca major,
41. Pleated Ink Cap Mushroom, Parasola plicatilis ,
42. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
43. Rock Shield Lichen, Xanthoparmelia tinctina,
44. Russula Mushrooms, Russula sp.,
45. Saw-Whet Owl, Aegolius acadicus,
46. Snowy Egret, Egretta thula,
47. Spotted Towhee, Pipilo maculatus,
48. Sunburst Lichen, Xanthoria elegans,
49. Turkey Tail fungus, Trametes versicolor,
50. Valley Oak, Quercus lobata,
51. Wavy-Leaf Soap Root, Soap Plant, Chlorogalum pomeridianum,
52. Western Gray Squirrel, Sciurus griseus,
53. Western Redbud, Cercis occidentalis,
54. Western Toad, Anaxyrus boreas,
55. Yarrow, Common Yarrow, Achillea millefolium,