Ken Ecton and I decided to check out Crow Valley
Campground (Weld) this morning and early afternoon. We ran into Carol and
Ruth. The four of us decided the campground itself was fairly quiet,
with a decent bird here and there, but unanimously felt the northwest corner was
nothing short of a migratory spectacle, at least in terms of bird numbers.
The magic Russian-olive by the temporary pond just north of the gate that goes
out to the primitive camping/Mourning Dove Trail was literally alive with
birds. It was obvious a wave of birds is being pushed along by
this cold front, some orienting straight down from the low clouds to the
north edge of the campground.
Highlights:
The burned areas are recovering pretty well, especially
the willow jungle due south of the Main Picnic Shelter (MPS).
The recent rain and flowing water in Crow Creek will be
of further help in this regard.
Yellow-rumped Warbler (at least 30, my FOS at low
elevation, mostly in Russian-olive)
Townsend's Solitaire (at least 10, probably many more,
all associating with Russian-olive)
Townsend's Warbler (at least 10, probably many more, in
Russian-olives, coyote willows, and sunflowers)
Orioles (at least 3, one of which I feel fairly certain
was a Baltimore (poor photos obtained), in Russian-olives mostly (eating
them, too))
Orange-crowned Warbler (at least 15, probably many
more)
Wilson's Warbler (at least 20)
Spizella sparrows (a few hundred, about an even split
between Brewer's, Clay-colored, and Chipping)
Nashville Warbler (1 female, trying very hard to blend
in among the more yellow-gray contrasting Orange-crowns, mostly low, in Lactuca
(I think))
White-crowned Sparrow (1 imm, FOS at low
elevation)
Lincoln's Sparrow (1)
Mimic Thrushes (a few Brown Thrashers, at least 1 Gray
Catbird, at least 1 Northern Mockingbird, all in Russian-olives)
Gray Flycatcher (1, by the horseshoe pits s of
the MPS)
Cassin's Kingbird (1 flew over the southwest corner
junipers)
American Redstart (1f, mostly somewhat high in the
cottonwoods between the southwest corner and the MPS)
Hammond's Flycatcher (1, under the monster cottonwood
that somewhat burned where the trail dips under it, south of the
MPS)
Blue-gray Gnatcatcher (at least 15, mostly in the
northwest corner by the cattle pond, and in scattered trees out
north)
Hermit Thrush (2)
Ruby-crowned Kinglet (few)
Empidonax (undetermined, probably "Traill's"
type)
Western Tanager (at least 3, all in
Russian-olives)
Western Wood-Pewee (at least 5)
no sapsuckers
no Myiarchus flycatchers
very few thrushes
very few empids
no vireos
........................................
Total of 42 species
GR96 had a fairly large group of longspurs, all McCown's
that we could determine.
The Weld CR100 between CR57 and Norma's Grove was
crawling with birds in the sunflowers on either side (mostly the same mix as the
northwest corner of Crow Valley plus at least 4 Sage Thrashers, and a Bullock's
Oriole male). Although I've seen it many times before, it always seems
surprising to see Townsend's Warblers working sunflowers along a prairie
road. Norma's Grove itself was very quiet (no water) and just had a
Sharp-shinned Hawk (maybe why it was quiet), a Great Horned Owl, and one Least
Flycatcher.
Lots of Swainson's Hawks on the move, and a few Sage
Thrashers seen in other places. Does it seem like there are more Sage
Thrashers on the plains than would be considered normal?
Dave Leatherman
Fort Collins