Tag Archives: Accipiter cooperii

A Young Cooper’s Hawk, 07-05-19

While my coworker Nate Lillge was out getting coffee before the naturalist class, he caught sight of a raptor sitting in the middle of the road. He was worried about it getting hit by a car, but when a jogger went stomping by, the bird flew up into a nearby tree.

Nate called the office to let us know the bird was out there, and just before class started, he drove me over to the spot where he’d seen it. We both think it was a fledgling Cooper’s Hawk (Accipiter cooperii), and it was complaining softly all the while it was sitting up there, no doubt waiting for its parents to bring it lunch. It was a neat pre-class sighting.

CLICK HERE for the photos.

Interesting Turkeys on the Naturalist Walk, 04-09-19

Up at 6:00 this morning, and then headed out to the Effie Yeaw Nature Preserve to do my trail walking thing – along with three of my naturalist students.  The weather was lovely, so the critters were out and moving around, and the wildflowers were really starting to open up.

We got to see a tiny female American Kestrel chase off a large Cooper’s Hawk, saw the young buck with a broken nose browsing with some of the does, and saw a yard-long gopher snake leave the side of the trail and rush through the grass like water.

We also came across a female Wild Turkey sitting on the ground next to a brush pile occupied by some California Ground Squirrels. Everything I’d read about the turkeys indicated that they nested in low branches of trees or ON brush piles, so even though she looked pretty settled on the ground I assumed she was just taking a dirt bath (which the turkeys often do to control mites).  I walked up to her, slowly, and she eventually stood up and walked away from where she’d been sitting: a bare, shallow patch of dirt.

When I got home, I did some more research on the turkey and found this: “…Wild Turkeys nest on the ground in dead leaves at the bases of trees, under brush piles or thick shrubbery, or occasionally in open hayfields. The female scratches a shallow depression in the soil, about 1 inch deep, 8–11 inches wide, and 9–13 inches long…” So, this gal may have been prepping a nest site, not dirt bathing.  I’ll have to check on the spot again the next time I’m out there.

Seeing the turkeys -– including one of the leucistic females who came out of the forest like a ghost – brought on a flurry of “snood” jokes. Four women on the trail talking about the male turkeys’ accouterments. We couldn’t help ourselves. Hahahahaha!

Oh, and I also learned that although the male hierarchy changes a lot as the males challenge, defeat, and retreat from one another, the female turkeys’ hierarchy remains constant from season to season, with a dominant female overseeing all of the ladies.  How cool is that?

We didn’t see the Mourning Doves on or near their nest, and I’m afraid they may have abandoned it.  When we got to the Red-Shouldered Hawk nest on the Pond Trail, however, mama hawk was in the nest and calling out to hubby. We could hear her, but we couldn’t see her. The nest is pretty deep and it’s right over the trail so it’s hard to see into it. Suddenly, mama hawk burst out away from the nest and flew right at and over one of the students! She was able to catch a photo of the hawk as she flew over her head! Awesome!

Among the flowers we saw were Blue Dicks, Bush Lupine, California Poppies, Fringe Pod, Periwinkle, Miniature Lupine, different kinds of plantains, and a variety of tiny yellow flowers that defied identification. On one of the plants was an example of “fasciation”, wherein the flowering heads weld together.  “…Scientists aren’t sure what causes the deformity, but they believe it is probably caused by a hormonal imbalance. This imbalance may be the result of a random mutation, or it can be caused by insects, diseases or physical injury to the plant. Think of it as a random occurrence. It doesn’t spread to other plants or other parts of the same plant…”

CLICK HERE to see the album of photos.

The ladies were wonderful trail walking companions: they were excited about everything, had great questions, and lots of wonderful feedback about the naturalist course. We walked for almost 5 hours (which was way too long for me) before we all headed back home again. Deborah had come all the way from Napa to walk with me, so she had the longest drive back home (over 2 hours).

I totally overdid it and was exhausted and in pain when I got home, but it was worth it to have spent those hours with the ladies’ positive energy.  Even though I practically went back to bed when I got home, I was happy. This is just how I want to spend what time I have left.

It was a good day.

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. Buck Brush, Ceanothus cuneatus,
8. Bush Lupine, Lupinus albifrons,
9. California Ground Squirrel, Otospermophilus beecheyi,
10. California Manroot, Marah fabaceus,
11. American Kestrel, Falco sparverius,
12. Black Bean Aphid, Aphis fabae.
13. Boxedler Tree, Boxelder Maple, Acer negundo.
14. Bush Lupine, Lupinus excubitus.
15. California Plantain, Plantago erecta.
16. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta,
17. California Pipevine, Aristolochia californica,
18. California Poppy, Eschscholzia californica,
19. California Scrub Jay, Aphelocoma californica,
20. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
21. Cooper’s Hawk, Accipiter cooperii,
22. Coyote Brush Midge (gall), Rhopalomyia californica,
23. Coyote Brush, Baccharis pilularis,
24. Douglas Iris, Iris douglasiana,
25. Eastern Fox Squirrel, Sciurus niger,
26. European Starling, Sturnus vulgaris,
27. Fringe Pod, Thysanocarpus curvipes ssp. elegans,
28. Green Shield Lichen,Flavoparmelia caperata,
29. House Wren, Troglodytes aedon,
30. Interior Live Oak, Quercus wislizeni,
31. Lace Lichen, Ramalina menziesii,
32. Miniature Lupine, Lupinus bicolor,
33. Mourning Dove, Zenaida macroura,
34. Nutthall’s Woodpecker, Picoides nuttallii,
35. Pacific Gopher Snake, Pituophis catenifer,
36. Painted Lady butterfly, Vanessa cardui,
37. Periwinkle, Vinca major,
38. Red-Shouldered Hawk, Buteo lineatus,
39. Red-Tailed Hawk, Buteo jamaicensis,
40. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
41. Saw-Whet Owl, Aegolius acadicus,
42. Snowy Egret, Egretta thula,
43. Spotted Towhee, Pipilo maculatus,
44. Tree Swallow, Tachycineta bicolor,
45. Turkey Vulture, Cathartes aura,
46. Valley Oak, Quercus lobata,
47. Wavy-Leaf Soap Root, Soap Plant, Chlorogalum pomeridianum,
48. Western Redbud, Cercis occidentalis,
49. Western Fence Lizard, Sceloporus occidentalis,
50. Yarrow, Common Yarrow, Achillea millefolium,

Lots of Birds Nesting, 03-31-19

Around 7:00 am I headed over to the American River Bend Park for walk. It was about 44° at the river when I got there and was heading toward 70° by the time I left.

It was nice to see that the dirt road to the camping area and nature trails was cleaned up and smoothed out. No more car-swallowing potholes!  I saw some deer and a jackrabbit right when I was heading in, so I felt that was a good portend.

The Black Walnut trees are starting to leaf out and drop their catkins, and the California Buckeye trees are just beginning to squeeze out their panicles of flowers. Redbud trees are flowering, and the Santa Barbara Sedge is starting to show off. I checked out various stands of Pipevine but still don’t see any evidence of butterfly eggs yet… I was happy to see small stands of stinging nettle in the picnic area. Let’s see how long it’s allowed to remain there.  It’s a host plant for Red Admiral butterflies, and when the park eradicates the nettles, they eradicate the butterflies as well.  You’d think they’d figure that out.  It would be a lot easier and cheaper to post a sign about the nettles and have people avoid them, than to kill all of the plants.

CLICK HERE for the album of photos.

I spent almost 20 minutes watching a female Western Bluebird deciding whether she wanted to commit to a nesting cavity or not. She flew up to the opening several times, poked her head in and looked around, but then would back off again. I didn’t understand what her hesitation was and wondered if maybe the hole was already occupied by something. Then it occurred to me that she might not be committing to the spot because I was there watching her, so I walked off a bit, then a bit more. I still didn’t see her go all the way in, but her hubby was sitting in the tree nearby patiently waiting for her to make a decision.

I also came across a House Wren taking twigs to her nesting cavity, and a European Starling poking her head out of her nest.  She’d chased off a Tree Swallow that wanted the same spot.  Lots of cool photo ops today!

I got to see a very large Red-Tailed Hawk in a tree (but she had her face turned away from me, so I didn’t get any good shots of that).  She was so big, I thought at first that she might have been an owl.  As soon as she left, I saw a Red-Shouldered Hawk near the same tree.  As I was leaving the park, I also saw a Cooper’s Hawk chattering in a tree alongside the road.

I walked for a little over 3 ½ hours before heading back home.

Species List:

1. Acorn Woodpecker, Melanerpes formicivorus
2. Audubon’s Warbler, Yellow-Rumped Warbler, Setophaga auduboni auduboni
3. Black Walnut Tree, Juglans nigra
4. Black-Tailed Jackrabbit, Lepus californicus
5. Blue Dicks, Dichelostemma capitatum
6. Burr Chervil, Anthriscus caucalis
7. California Buckeye, Aesculus californica
8. California Manroot, Bigroot, Marah fabaceus
9. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta
10. California Pipevine, Dutchman’s Pipe, Aristolochia californica
11. Canada Goose, Branta canadensis
12. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus
13. Common Goldeneye, Bucephala clangula
14. Common Ink Cap Mushroom, Coprinopsis atramentaria
15. Cooper’s Hawk, Accipiter cooperii
16. Cranefly, Mosquito Hawk, Tipula dietziana
17. Destroying Angel Mushroom, Amanita ocreata
18. Dog Vomit Slime Mold, Fuligo septica
19. European Starling, Sturnus vulgaris
20. Giraffe’s Head Henbit, Henbit Deathnettle,
21. Golden Shield Lichen, Xanthoria parietina
22. Green Shield Lichen, Flavoparmelia caperata
23. Haymaker Mushroom, Panaeolus foenisecii
24. Hoary Lichen, Hoary Rosette, Physcia aipolia
25. Hop Tree, Ptelea trifoliata
26. House Wren, Troglodytes aedon
27. Lesser Goldfinch, Spinus psaltria
28. Longstalk Cranesbill, Geranium columbinum
29. Miner’s Lettuce, Claytonia perfoliata
30. Nutthall’s Woodpecker, Picoides nuttallii
31. Oakmoss Lichen, Evernia prunastri
32. Popcorn Flower, Plagiobothrys sp.
33. Red-Shouldered Hawk, Buteo lineatus
34. Red-Tailed Hawk, Buteo jamaicensis
35. Rio Grande Wild Turkey, Meleagris gallopavo intermedia
36. Santa Barbara Sedge, Valley Sedge, Carex barbarae
37. Shepherd’s Purse, Capsella bursa-pastoris
38. Speedwell, Bird’s Eye Speedwell, Veronica persica
39. Spotted Towhee, Pipilo maculatus
40. Stinging Nettle, Annual Stinging Nettle, Urtica urens
41. Stork’s Bill, Big Heron Bill, Erodium botrys
42. Sunburst Lichen, Xanthoria sp.
43. Tree Swallow, Tachycineta bicolor
44. Western Bluebird, Sialia mexicana
45. Western Redbud, Cercis occidentalis
46. White Alder, Alnus rhombifolia
47. Winter Vetch, Smooth Vetch, Vicia villosa