Tag Archives: Cosumnes River Preserve

Lots of Snowy Egrets, 05-31-19

I got up about 5:30 this morning, fed the dog his breakfast and then headed out to the Cosumnes River Preserve for a walk.

There was little to no water in the “wetland” areas, so not a lot of birds or dragonflies. I walked along the slough on the side of the road, and then walked through the oak woodland to the nature center, and then back to the car.  Along the slough, I saw Tree Swallows, a pair of Western Kingbirds, and a trio of Brown-Headed Cowbirds doing their bowing thing. They were on the top of a tree, so bowing was difficult, and they kept rolling off their twiggy branches. Eventually, they gave up and flew off.

Further along, I came across a small flock of Snowy Egrets who were feeling for things in the water with their feet.  As I was watching them and taking pictures, a Great Egret flew in and joined them. Seeing the great Egret and the Snowy Egrets side-by-side really exemplifies their size difference. It looked like a mama bird with lots of babies around her.  Some of the Snowy Egrets were flashing their top knots at one another. I got the sense that it was a more an aggressive, territorial thing than a romance thing. None of the birds had their long, trailing feathers in; and none of them were sporting the pink blush in the face the Snowies get when their breeding.

CLICK HERE for the album of photos.

Beyond the regular Oak Apple galls, there weren’t a lot of other ones out yet. I saw some Red Cones just starting to grow – looking like tiny red pimples on the leaves of some of the Valley Oaks.  I did see the curling leaf galls and “flower” galls on the ash trees, but not as much as I’m used to seeing.

As I was walking through the oak woodland, I was surprised to see a large flock of American White Pelicans fly overhead. By the time I got my camera up and focused, though, they were gone. It’s always so neat to see those big birds flying.  They don’t look like they should be able to stay aloft, but they’re so graceful in the sky.

I also got a glimpse of a Green Heron when he flew out from the rushes around the bridge area, and up into a willow tree.  There were so many twiggy branches around him, though, it was hard to get any decent shots of him.

Near the nature center, I saw some House Finches, Anna’s Hummingbirds, and a baby cottontail rabbit. The baby was a surprise; my brain couldn’t get itself around how small it was at first, and I just stared at it. I did come to enough to get a few shots of the bunny before it scrambled away, though.

Even going down to the boat launch area, I was surprised by the lack of insects. I was hoping to see dragonflies, damselflies and spiders there, but… nothing.

I walked for about three hours and then started to head home.  My insides were starting to complain, and I hurried to the restroom near the boardwalk area where my car was parked – only to find that the thing was locked shut. Seriously?! Guh! I hate it when that happens.

Species List:

  1. American White Pelican, Pelecanus erythrorhynchos,
  2. Anna’s Hummingbird, Calypte anna,
  3. Ash Flower Gall Mite, Eriophyes fraxinivorus,
  4. Ash Leaf Curl Aphid, Prociphilus fraxinifolii,
  5. Asian Ladybeetle, Harmonia axyridis,
  6. Bermuda Grass, Cynodon dactylon,
  7. Bindweed, Field Bindweed, Convolvulus arvensis,
  8. Birds-Foot Trefoil, Lotus corniculatus,
  9. Black Phoebe, Sayornis nigricans,
  10. Blue-Eyed Grass, Sisyrinchium angustifolium,
  11. Broadleaf Cattail, Bullrush, Typha latifolia,
  12. Broadleaf Mistletoe, Phoradendron macrophyllum,
  13. Brown-Headed Cowbird, Molothrus ater,
  14. Buttonbush, Cephalanthus occidentalis,
  15. California Brodiaea, Brodiaea californica,
  16. California Poppy, Eschscholzia californica,
  17. California Wild Rose, Rosa californica,
  18. Cleveland Sage, Salvia clevelandii,
  19. Common Knotweed, Persicaria lapathifolia,
  20. Common Yarrow, Achillea millefolium,
  21. Convergent Ladybeetle, Hippodamia convergens,
  22. Coyote Brush Bud Gall Midge, Rhopalomyia californica,
  23. Curly Leaved Dock, Rumex crispus,
  24. Desert Cottontail Rabbit, Sylvilagus audubonii,
  25. Doveweed, Turkey Mullein, Croton setigerus,
  26. English Field Daisy, Bellis perennis,
  27. Fennel, Sweet Fennel, Foeniculum vulgare,
  28. Floating Water Primrose, Ludwigia peploides,
  29. Goodding’s Willow, Salix gooddingii,
  30. Great Blue Heron, Ardea herodias,
  31. Great Egret, Ardea alba,
  32. Green Heron, Butorides virescens,
  33. Green Pea Aphid, Acyrthosiphon pisum,
  34. House Finch, Haemorhous mexicanus,
  35. Hoverfly, Syrphidae,
  36. Hummingbird Sage, Salvia spathacea,
  37. Jointed Charlock, Raphanus raphanistrum,
  38. Killdeer, Charadrius vociferus
  39. Lippia, Turkey Tangle, Fogfruit, Phyla nodiflora,
  40. Long-Jawed Orb Weaver, Tetragnatha extensa,
  41. Oak Apple Gall Wasp, Andricus quercuscalifornicus,
  42. Oregon Ash, Fraxinus latifolia,
  43. Pearly Everlasting, Anaphalis margaritacea,
  44. Poison Hemlock, Conium maculatum,
  45. Poison Oak, Toxicodendron diversilobum,
  46. Purple Finch, Haemorhous purpureus,
  47. Purpletop Vervain, Verbena bonariensis,
  48. Rabbitsfoot Grass, Polypogon monspeliensis,
  49. Red-Winged Blackbird, Agelaius phoeniceus,
  50. Seven-Spotted Ladybeetle, Coccinella septempunctata,
  51. Snowy Egret, Egretta thula,
  52. Swift Crab Spider, Mecaphesa celer
  53. Tree Swallow, Tachycineta bicolor,
  54. Tule, Schoenoplectus acutus,
  55. Valley Oak, Quercus lobata,
  56. Variable Flatsedge, Cyperus difformis,
  57. Western Fence Lizard, Sceloporus occidentalis,
  58. Western Kingbird, Tyrannus verticalis,
  59. Wild Onion (white), Allium sp.,
  60. Willow Apple Gall Wasp, Pontania californica,
  61. Willow Bead Gall Mite, Aculops tentanothrix,
  62. Willow Bud Gall Mite, Aculops aenigma,
  63. Willow Stem Gall Wasp, Euura exiguae,

A Few Birds at the Cosumnes Preserve, 03-24-19

I got up around 6:30 and headed over to the Cosumnes River Preserve to see how things are shakin’ there.  It was about 44° when I headed out.

I was actually kind of disappointed. Even through a 4-hour walk which really taxed my body, I didn’t see as much stuff as I was hoping to. The ponds near the boardwalk parking lot were virtually empty. Handfuls of birds here and there; most of them out of range of my camera. Along the river trail I startled a Cottontail who, if he had been still, I would have passed by completely. But he decided to make a dash for it, then stopped out in the open. Must’ve been a young one; the adults know better than that.

I also got to see a Black Phoebe mining mud, I guess, from UNDER the boardwalk (I guess all of the other mud in the place wasn’t good enough for her). When she flew in under the boards, her wings and tail dipped in the water, and Phoebe feathers aren’t waterproof so she was kind of endangering herself with every dip.

Now, I assumed she was pulling mud OUT of there, but she may also have been creating a nest under the boards – although that seems really weird to me. If she was constructing her nest under the boards, it could be ruined if the water level in the ponds rises again (or the place gets flooded again). Phoebe nests are made primarily of mud, so if one got wet it would disintegrate, and the eggs or nestlings would drown.

I wished I could’ve gotten a camera under there to see what was really going on.

CLICK HERE for the album of photos.

There also seemed to be an inordinate number of Audubon’s Warblers all over the property… and the Tree Swallows were vying for nesting spots in the bird boxes and the trees. But otherwise, I felt the trip was kind of a bust.

Species List:

1. American Coot, Fulica americana
2. American Pipit, Anthus rubescens
3. American Robin, Turdus migratorius
4. American Wigeon, Anas americana
5. Anna’s Hummingbird, Calypte anna
6. Ash Tree, Oregon Ash, Fraxinus latifolia
7. Audubon’s Warbler, Yellow-Rumped Warbler, Setophaga coronata auduboni
8. Black Phoebe, Sayornis nigricans
9. Black-Necked Stilt, Himantopus mexicanus
10. Boxelder Tree, Acer negundo californicum
11. Bushtit, Psaltriparus minimus
12. Canada Goose, Branta canadensis
13. Cinnamon Teal, Anas cyanoptera
14. Cottontail, Desert Cottontail, Sylvilagus audubonii
15. Dock, Curly Dock, Rumex crispus
16. Fennel, Sweet Fennel, Foeniculum vulgare
17. Freshwater Snail, Bithynia tentaculata
18. Great Blue Heron, Ardea herodias
19. Great Egret, Ardea alba
20. Greater Yellowlegs, Tringa melanoleuca
21. House Finch, Passer domesticus
22. Jointed Charlock, Wild Radish, Raphanus raphanistrum
23. Killdeer, Charadrius vociferus
24. Long-Billed Dowitcher, Limnodromus scolopaceus
25. Mallard, Anas platyrhynchos
26. Marsh Wren, Cistothorus palustris
27. Mourning Dove, Zenaida macroura
28. Northern Pintail, Anas acuta
29. Northern Shoveler, Anas clypeata
30. Oak Apple Gall Wasp gall, Biorhiza pallida
31. Oakmoss Lichen, Evernia prunastri
32. Poison Oak, Toxicodendron diversilobum
33. Red-Winged Blackbird, Agelaius phoeniceus
34. Ring-Necked Duck, Aythya collaris
35. Ruby-Crowned Kinglet, Regulus calendula
36. Hummingbird Sage, Salvia spathacea
37. Snowy Egret, Egretta thula
38. Song Sparrow, Melospiza melodia
39. Spider’s Web, Spotted orb weaver, Neoscona crucifera
40. Spotted Towhee, Pipilo maculatus
41. Tadpoles, California Tree Frog, Pseudacris cadaverina
42. Tree Swallow, Tachycineta bicolor
43. Tule, Schoenoplectus acutus var. occidentalis
44. Valley Oak, Quercus lobata
45. White-Crowned Sparrow, Zonotrichia leucophrys
46. White-Faced Ibis, Plegadis chihi

Waterfowl and Other Birds, 01-21-19

Around 7:30, I headed out to the Cosumnes River Preserve for a walk. I was a little pissed off, as were others who came to the preserve, that on a holiday day when they knew people would be coming to the preserve, the folks who run the preserve didn’t open the gates… So, everyone had to park on the road instead of the parking lots, which is dangerous because the road is kind of narrow with deep culverts and sloughs on either side, and the locals like to speed down it. It was about 45° when I got there, and a little breezy.

Not a lot of birds, which was kind of surprising considering the time of year. But even with the small number of birds, I was able to see about 25 different species including: Northern Shovelers, a Blue-Winged Teal, Cinnamon Teals, Green-Winged Teals, Northern Pintails, American Pipits, Marsh Wrens, Song Sparrows, Canada Geese, Black Phoebes, Western Meadowlarks, House Finches, American Coots, an American Robin, Black-Necked Stilts, Long-Billed Dowitchers, a Yellow-Rumped Warbler (Audubon’s Warbler), a Greater Yellowlegs, Golden-Crowned Sparrows, White-Crowned Sparrows, a Spotted Towhee and a California Towhee, a Great Egret and Greater White Fronted Geese.

CLICK HERE for the full album of photos.

I also found a Bushtit nest in one of the trees. The most active were the little male Marsh Wrens who were flitting around and singing away setting out the boundaries of their territories before they start their nest-building activities. The Long-Billed Dowitchers were all sitting, snuggled down in the shallow water, dozing away – until a train came by and blew its horn. Then they all took off in a flurry.

I walked for about 1 ½ hours, but still covered about 2 miles.

Very Foggy at the Cosumnes Preserve, 12-11-18

It was foggy and cold most of the day, about 41° in the morning, and in the 50’s by the late afternoon.  I headed over to the Cosumnes River Preserve for a walk even though Wilson was hurting a bit. It was super foggy out there, so it was nearly impossible to see any birds, but I figured I might be able to get some scenery and spiderweb shots.  I was happy to see that the preserve that put metal skid-strips all along the wooden boardwalk to the river trail. That boardwalk could get really slippery when it was wet or icy; the strips will help to cut down on slip-and-fall accidents.  I walked a little bit further than I probably should have and was really in pain by the time I got back home about 3 hours later.

CLICK HERE for the full album of photos.

Still Not a Lot of Variety Yet, 11-12-18

I got up around 7:00 am, fed the dog his breakfast, and then went out to the Cosumnes River Preserve for a walk. There was still a lot of smoke in the air from the Camp Fire.

The preserve still doesn’t have enough water in it, so it was something of a disappointment, but I did get to see several different species of birds including fly-overs of small flocks of Sandhill Cranes and Tundra Swans. In their Facebook posts, the preserve had been talking about large flocks of Snow Geese in the surrounding rice fields, but I didn’t see any.  There were loads of greater White-Fronted Geese, though.  I also saw a few

The Coots were out feeding near the viewing platform of the boardwalk area, and I got to do my naturalist thing when two older women walked up and asked me if the “black birds were Moor Hens”.  I told them about the Coots and the Gallinules (moorhens) and how they were different, and then was able to point out a Northern Pintail to them, and a Black Phoebe. So, they got a free lesson today.  There was also some kind Rail near the viewing platform, but she flew off into the tules before I could get a really good look at her.  Maybe a Virginia Rail, but I’m not sure. It seems early in the season to see one of those.

I also saw Red-Winged Blackbirds, Killdeer, and Black-Necked Stilts which are all kind of ubiquitous in the area, along with a few  White-Crowned Sparrows, Savannah Sparrows, Western Meadowlarks, Northern Shovelers, House Finches, Great Egrets, Cinnamon Teals, Green-Winged Teals, a Greater Yellowlegs, some American Pipits, two or three Wilson’s Snipes, Red-Tailed Hawks, a Red-Shouldered Hawk, some male Lesser Goldfinches, and Song Sparrows.

CLICK HERE for the album of photos.

I was surprised when a small flock of Cedar Waxwings flew in and occupied the oak trees along the slough for a while. They’re primarily berry-eaters, and there were no berries around the slough this time of year.

As I was leaving the boardwalk area of the preserve, I stopped to use the little outhouse there, and found a couple of female praying mantises that apparently had just laid their egg cases on the side of the building. I also found a mud bird’s nest (probably a Phoebe’s) and some wasps’ nests (both from Paper Wasps and Mud-Dauber Wasps). I walked for about 3 hours and then headed back home, getting there around noon.

The Cows Were More Obvious Today, 10-20-18

I had decided to just rest up over this weekend, but I couldn’t resist heading out to the Cosumnes River Preserve in the early morning. The preserve had posted that 90% of their wetland areas had water in them, so I wanted to see what it was like out there.

Uh. If what I saw out there was indeed 90%, then there are huge areas that the public can never see. The slough and some of the rice fields adjacent to the preserve were full of water, but there was no water in the wetland areas around the boardwalk or Desmond Road (which is where the public is allowed to do viewing). So, I was super disappointed as I felt the public had been lied to by the preserve.  Apparently, quite a few other people had also been duped by the announcement; there were cars cruising up and down Desmond and Bruceville Roads looking for birds.

The lack of water also meant a distinct lack of wildlife viewing. I did get to see COWS in some of the fields, and some Sandhill Cranes in other fields (but too far away for my camera to get any good shots of them). *Sigh* There was one Red-Tailed Hawk that was hunting near the boardwalk area and sat on the top of a short tree, so she could see what was around her. I saw her go to ground at one point, but don’t think she caught anything. The only other birds I saw were the common Canada Geese, Greater White-fronted Geese, Mallards, Brewer’s and Red-Winged Blackbirds, and some Bushtits and White-Crowned Sparrows. Nothing special.

I saw a few tiny damselflies that I think were Paiute Dancers, and also came across two large praying mantises, gravid females looking like they were ready to lay their eggs.

But overall, I felt the trip was a bust.