Cobirds:
More migrants pouring into Boulder County.
At Walden / Sawhills and Heatherwood Trail this morning:
Violet green swallow - about 200
House wren - 8 - numbers increasing, singing
Audubon's warbler - 21 - singing males
Myrtle warbler - 16 singing males
Orange crowned warbler - 1
Yellow warbler - 2 - singing
Long billed dowitcher - 6 - still at Duck Pond
Great tailed grackle - 1 hanging at Cottonwood marsh
Yellow headed blackbird - 1
Red winged blackbird - 100 - fights, chases, females gathering nesting materials
Solitary sandpiper - 1 - along the boardwalk
Mourning dove - numbers increasing
Vesper sparrow - 1
Bullock's oriole - 1 singing
Other places:
Cliff swallows have returned and are exploring bridges
Broad tailed hummingbird - numbers increasing in Boulder Mt. Park - all males
Three-toed woodpecker - near summit of Bear Peak - 2 males in territorial fight
Audubon's warblers - moving up into higher elevations
Black headed grosbeak - 1 singing in BM Park
Chipping sparrow - 2 - BM Park
Ruby crowned kinglet - 4 singing at lower elevations in BM Park
Spotted towhee - lots of males singing blatantly out in the open on exposed braches
Robins, grackles, crows, doves, blackbirds, finches, and house sparrows all gathering nesting materials.
Lincolns' sparrows, orange crowned warblers, and black crowned night heron along Coal Creek Trail in Louisville
Wildflowers are 2 weeks late compared to last year, but here's what I saw blooming this weekend:
Dandelion
Sand lily
Wild plum - just starting
Bastard toadflax
Mustard ssp.
Oregon grape
Cranesbill
Yellow violet
Spring beauty
Chiming bells
Knickiknick
John T (Tumasonis) of Louisville CO