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The 1st Summer 2019 Naturalist Field Trip, 06-15-19

I got up at 4:00 this morning, got the dog fed and outside to pee, and then headed out to Woodland for our first field trip for the summer naturalist class.  I got to the Woodland Library around 5:45 am and waited for my coworker Bill and the students arrive. The weather was VERY cooperative today. I was worried that the summer heat would make our field trips unbearable in the summer, but today it was nice.  It was in the low 60’s when we headed out, and only about 78° when we came back, so that was great.  There was also a slight breeze which helped, too.

When everyone got to the library and had signed in, we all headed out to the Sacramento National Wildlife Refuge.  I left my car in the parking lot and went with Bill in his van along with our student, Jeanette, who is a middle school teacher.

  • Locate and identify at least fifteen (15) animal species (birds, amphibians, reptiles)
  • Locate and identify at least ten (10) plant species
  • Locate and identify at least ten (10) insect species

While we were walking around the nature center, I think they all got the majority of those requirements!  The insects were probably the most difficult for everyone, but we’ll see on Friday (at class) how well everyone did. 

Near the nature center, we came across a large fat weevil sitting on the top of the flowering head of a tule.  Bill rapped on the weevil a couple of times and figured it was dead, but when I stroked it, its feet moved, so we all inferred that the weevil was in a state of torpor, waiting for the sun to get a little higher in the sky so it could warm up more and start moving around. 

Everyone took photos of it and tried to identify it using the iNaturalist app we’d told them about in class on Friday.  It came up as a Billbug Weevil from the genus Sphenophorus. If you look at the map in iNaturalist, though, you’ll see that Billbug Weevils have been sighted all over the globe. So, calling this a Billbug Weevil is somewhat accurate, but for a more precise ID, I wanted the students to try get down to the species level on the weevil when they got home. Insects can be especially hard to ID because there are literally millions of them, and you have to deal with taxon levels that include superfamilies, tribes and subtribes before you can get close to the species. It will be interesting to see how far the students are able to get.

We also found a buckwheat plant that I didn’t recognize as buckwheat at all because its shape wasn’t like any buckwheat plant I’d seen before.  The signage by the plant said it was California Buckwheat, Eriogonum fasciculatum, as did iNaturalist, but that didn’t quite look right to me. The leaves were the wrong shape.  So, I did a little more research, and I believe it was actually St. Catherine’s Lace, Eriogonum giganteum, a kind of wild buckwheat that usually only grows in Southern California. When we were studying the plant, two of the students (Jeanette and Edna) also observed that some of the flowers still had their pink pollen balls and others did not… and we inferred that those that didn’t have their pollen balls anymore had already been pollinated.

Buckwheat, St. Catherine’s Lace, Eriogonum giganteum, with pollen blass intact

When it came time to drive the auto-tour route, I drove Bill’s van so he could do more observations, and Jeanette and another student, Mica, a retired farmer, came along with us. Bill was able to open up both sides of his van, so the gals could get an unobstructed view of what was out on the preserve. Although everyone was able to go at their own pace along the route, we stopped at two of the park-and-stretch areas so we could compare notes and get a closer look at things.  At the first stop, the students Ken and Alison, who are already expert birders, were helping the students spot and identify bird species and also explained what they meant when they talked about the birds’ GISS.

GISS stands for “General Impression, Shape, and Size” (originally a military term). Birders often use the bird’s GISS as a way to do a preliminary or in-field identification of a bird when it’s backlit (only seen in silhouette) or is too far away to see any details of its coloring. So, Alison and Kent were able to distinguish a pair of Northern Harriers flying over our heads from the Red-Tailed Hawk that was flying near them by nothing but their GISS. Very cool.  I’m nowhere near being that kind of an expert. 

At the second park-and-stretch spot, students relaxed with their lunches for a little while, and I was able to find a couple of examples of a specific kind of gall to tell them about, a Cottonwood Petiole Gall and is created by the aphid, Pemphigus populitransversus. The wingless female aphid called a “stem mother” chews at the leaf petiole (the stalk that joins a leaf to a stem) until it swells and then she climbs inside the swelling and has her babies inside of it. The baby aphids are born live and can be in either a winged form (called an “alate”) or without wings.

Cottonwood Petiole Aphid Gall,
Pemphigus populitransversus

While the students were resting and checking up on their notes, one of them, Alison, let us see what she’d put into her field journal for the morning. She’s an artist, and she uses fountain pens and watercolors to write and decorate her entries. It was beautiful. I can hardly wait for Friday when all the students share their journals, so I can take photos and let you see what they’re doing…

I also overheard a couple of students talking about how much they enjoyed the class, how much they’ve learned already (in just two sessions) and how many resources we’ve introduced them to that they didn’t even know existed before now.  That is so gratifying!

One more learning moment: On the eucalyptus trees along the end auto-tour route on Saturday, I also stopped to pull a leaf off of an obliging eucalyptus tree, so I could show the students in our vehicle the white teepee-like formation on it that some folks mistake for galls.  The formations are actually called “lerps” and they’re created by a tiny insect called the Red Gum Lerp Psyllid, Glycaspis brimblecombei. These insects spin little white houses for themselves made of sugars and wax pulled from the leaves. They’re often very sticky with the honeydew produced by the insects.             

When we were done with the tour, everyone went their separate ways.

Species List:

  1. American Bullfrog, Lithobates catesbeianus,
  2. American Robin, Turdus migratorius,
  3. American Wigeon, Anas americana,
  4. Anna’s Hummingbird, Calypte anna,
  5. Ash-Throated Flycatcher, Myiarchus cinerascens,
  6. Bermuda Grass, Cynodon dactylon,
  7. Bewick’s Wren, Thryomanes bewickii,
  8. Billbug Weevil, Sphenophorus sp.,
  9. Birds-foot Trefoil, Lotus corniculatus,
  10. Black Phoebe, Sayornis nigricans,
  11. Black Saddlebags Dragonfly, Tramea lacerata,
  12. Black-Tailed Jackrabbit, Lepus californicusm,
  13. Blessed Milk Thistle, Silybum marianum,
  14. Brewer’s Blackbird, Euphagus cyanocephalus,
  15. Bristly Oxtongue, Helminthotheca echioides,
  16. Buckwheat, St. Catherine’s Lace, Eriogonum giganteum,
  17. Bulbous Canary Grass, Phalaris aquatica,
  18. Bullock’s Oriole, Icterus bullockii,
  19. California Flannelbush, Fremontodendron californicum,
  20. California Fuchsia, Epilobium canum,
  21. California Ground Squirrel, Otospermophilus beecheyi,
  22. Canada Goose, Branta canadensis,
  23. Cinnamon Teal, Anas cyanoptera,
  24. Cleveland Sage, Salvia clevelandii,
  25. Common Checkered Skipper, Pyrgus communis,
  26. Common Minnow, Phoxinus phoxinus,
  27. Common Teasel, Dipsacus fullonum,
  28. Cottonwood Petiole Aphid Gall, Pemphigus populitransversus,
  29. Coyote Brush, Baccharis pilularis,
  30. Desert Cottontail, Sylvilagus audubonii,
  31. Eurasian Collared Dove, Streptopelia decaocto,
  32. European Heliotrope, Heliotropium europaeum,
  33. European Starling, Sturnus vulgaris,
  34. Field Bindweed, Convolvulus arvensis,
  35. Field Mustard, Sinapis arvensis,
  36. Flax-leaved Horseweed, Erigeron bonariensis,
  37. Floating Water Primrose, Ludwigia peploides ssp. peploides,
  38. Fremont Cottonwood, Populus fremontii,
  39. Gold Dust Lichen, Chrysothrix candelaris,
  40. Goodding’s Willow, Salix gooddingii,
  41. Great Blue Heron, Ardea herodias,
  42. Great Egret, Ardea alba,
  43. Greater White-Fronted Goose, Anser albifrons,
  44. Great-Tailed Grackle, Quiscalus mexicanus,
  45. Green-Winged Teal, Anas carolinensis,
  46. Italian Thistle, Carduus pycnocephalus,
  47. Jimson Weed, Datura stramonium,
  48. Mallard, Anas platyrhynchos,
  49. Marsh Wren, Cistothorus palustris,
  50. Monarch Butterfly, Danaus plexippus,
  51. Mosquitofish, Gambusia affinis,
  52. Mourning Dove, Zenaida macroura,
  53. Mute Swan, Cygnus olor,
  54. Mylitta Crescent Butterfly, Phyciodes mylitta mylitta,
  55. Narrowleaf Cattail, Cattail, Typha angustifolia,
  56. Narrowleaf Milkweed, Asclepias fascicularis,
  57. Northern Bluet Damselfly, Enallagma cyathigerum,
  58. Northern Pintail, Anas acuta,
  59. Northern Shoveler, Anas clypeata,
  60. Oleander Aphid, Aphis nerii,
  61. Pied-Billed Grebe, Podilymbus podiceps,
  62. Poison Hemlock, Conium maculatum,
  63. Raccoon, Procyon lotor,
  64. Red Gum Lerp Psyllid, Glycaspis brimblecombei,
  65. Red-Winged Blackbird, Agelaius phoeniceus,
  66. Rough Cocklebur, Xanthium strumarium,
  67. Sharp-leaved Fluellen, Kickxia elatine,
  68. Showy Milkweed, Asclepias speciosa,
  69. Spotted Orb-Weaver Spider, Neoscona crucifera,
  70. Striped Horsefly, Tabanus lineola,
  71. Sunburst Lichen, Xanthoria elegans,
  72. Teasel, Wild Teasel, Dipsacus fullonum,
  73. Tule, Common Tule, Schoenoplectus acutus,
  74. Turkey Tangle, Fogfruit, Phyla nodiflora,
  75. Variegated Meadowhawk Dragonfly, Sympetrum corruptum,
  76. Western Fence Lizard, Sceloporus occidentalis,
  77. Western Kingbird, Tyrannus verticalis,
  78. Western Meadowlark, Sturnella neglecta,
  79. Yellow Starthistle, Centaurea solstitialis

Mostly Bugs and Birds, 05-08-19

I got up around 6:00 and headed over to the Effie Yeaw Nature Preserve for my weekly volunteer trail-walker thingy.  It was totally overcast and about 53° when I arrived at the preserve, but it was sunny and about 65° when I left. Such a huge change in just a few hours.

I saw a lot of different things on my walk today, but the standouts were the European Starlings and Black Harvester Ants.

CLICK HERE for the album of photos.

The Starlings (Sturnus vulgaris) had a nesting cavity that was perfectly viewable from the trail.  The cranky babies inside (I saw two but there might have been more) were almost fully fledged but still demanding room service from their folks, who diligently brought them beakfuls of insects. At one point, one of the parents apparently got tired of me watching them and taking photos, and it spat the insects onto the ground before glaring at me from the side of the tree. Hah!

And the Black Harvester Ants (Messor pergandei) always fascinate me. They’re always so busy, hard-working and determined. I saw some heaving large seeds around and carrying dead bees and some kind of grubs to their nest. ((The photos and video snippets I got of the ants were taken with my cell phone.))

I walked for about 4 ½ hours. Phew!

Species List:

1. Acorn Woodpecker, Melanerpes formicivorus,
2. American Bullfrog, Lithobates catesbeianus,
3. Asian Lady Beetle, Harmonia axyridis,
4. Bedstraw, Velcro Grass, Galium aparine,
5. Bewick’s Wren, Thryomanes bewickii,
6. Black Phoebe, Sayornis nigricans,
7. Blessed Milk Thistle, Silybum marianum,
8. Blue Elderberry, Sambucus cerulea,
9. Bushtit, Psaltriparus minimus,
10. California Ground Squirrel, Otospermophilus beecheyi,
11. California Pipevine Swallowtail caterpillar, Battus philenor hirsuta,
12. California Pipevine, Aristolochia californica,
13. California Scrub Jay, Aphelocoma californica,
14. California Towhee, Melozone crissalis,
15. California Wild Grape, Vitis californica,
16. California Wild Rose, Rosa californica,
17. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
18. Common Yarrow, Achillea millefolium,
19. Coyote Brush Bud Midge Gall, Rhopalomyia californica,
20. Coyote Brush, Baccharis pilularis,
21. Cranefly, family Tipulidae,
22. Cricket, Arboreal Camel Cricket, Gammarotettix bilabatus,
23. Dogtail Grass, Cynosurus echinatus,
24. Eastern Fox Squirrel, Sciurus niger,
25. European Starling, Sturnus vulgaris,
26. Fruit-tree Leafroller Moth, Archips argyrospila
27. Great Horned Owl, Bubo virginianus,
28. Green Lacewing, Chrysoperla carnea,
29. Green Leafhopper, Nephotettix virescens,
30. Green Plant Bug, Chinavia hilaris,
31. Harvester Ant (black), Messor pergandei,
32. Himalayan Blackberry, Rubus armeniacus,
33. House Wren, Troglodytes aedon,
34. Housefly, Musca domestica,
35. Italian Thistle, Carduus pycnocephalus,
36. Katydid, Bush Katydid nymph, Scudderia sp.,
37. Leaf Beetle, Chrysolina sp.,
38. Lesser Goldfinch, Spinus psaltria,
39. Mallard, Anas platyrhynchos,
40. Miniature Lupine, Lupinus bicolor,
41. Mourning Dove, Zenaida macroura,
42. Mugwort, California Mugwort, Artemisia douglasiana,
43. Oak Apple Wasp Gall, Biorhiza pallida,
44. Oak Titmouse, Baeolophus inornatus,
45. Obliquebanded Leafroller, Blackberry Leafroller caterpillar, Choristoneura rosaceana,
46. Pacific Poison Oak, Toxicodendron diversilobum,
47. Painted Lady caterpillars, Vanessa cardui,
48. Pineapple Weed, Matricaria discoidea,
49. Poison Hemlock, Conium maculatum,
50. Pyracantha, Pyracantha coccinea,
51. Red-Shouldered Hawk, Buteo lineatus,
52. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
53. Robber Fly, Promachus princeps,
54. Rose Clover, Trifolium hirtum,
55. Rusty Tussock Moth caterpillar, Orgyia antiqua,
56. Seep Monkey Flower, Mimulus guttatus,
57. Showy Milkweed, Asclepias speciose,
58. Spittle Bug, Meadow Spittlebug, Philaenus spumarius,
59. Spotted Towhee, Pipilo maculatus,
60. Sudden Oak Death pathogen, Phytophthora ramorum,
61. Tree Swallow, Tachycineta bicolor,
62. Wavy-Leaf Soap Plant, Soap Root, Chlorogalum pomeridianum,
63. Western Bluebird, Sialia mexicana,
64. Western Fence Lizard, Sceloporus occidentalis,
65. White Horehound, Marrubium vulgare,
66. Winter Vetch, Vicia villosa,

A Fast Run Through the SNWR Auto-Tour, 07-21-18

Up at 5:00 am with the dog, and we headed out to the Sacramento National Wildlife Refuge. I wanted to beat the heat, but I also wanted to test out the car on a long drive before heading back to work on Monday.

CLICK HERE for the full album of photos.

At the refuge, I was hoping to see a lot of dragonflies… but without the large pond, they just weren’t around. It was kind of disappointing. The whole place is dry, with just small “mud holes” here and there. The big surprise was a Bald Eagle that took off just as I stopped to try to get photos of it. And I got a few cute photos of a mama California Ground Squirrel sitting up on a stump and eating a thistle head. I just love those little critters.

Because there wasn’t a lot to see, I got through the whole auto tour route very quickly and headed back to Sacramento. I got back home around noon. I think that’s the fastest turn-around I’ve ever done there.