Date: 4/25/25 3:40 pm From: John Tumasonis <snakemonev...> Subject: [cobirds] More spring arrivals, Broomfield, Westminster, Boulder
All: More summer residents and spring migrants coming through. These are mostly from today (Friday 4/25/25), but some are from earlier in the week. Key: PR = Present in several locations, common BR = Brunner Reservoir, Broomfield AM = Alex and Michael's Pond, Broomfield BL = Broomfield Library Pond PL = Plaster Reservoir, Broomfield DCW = Big Dry Creek Park and vicinity, Westminster CC = Cotton Creek Trail, Westminster DCT = Big Dry Creek Open Space, Thornton FF = Fredrick \ Firestone MU = Mushroom Pond, Westminster
Western Grebe - PL, only 2 American White Pelican - BR, AM, PL, DCW - groups are moving a lot Double Crested Cormorant - PR - numbers increasing Black Crowned Night Heron - PL - 1 Snowy Egret - BR, AM, BL, PL, MU - numbers increasing Great Blue Heron - AM, PL, DCW, FF, MU Canada Goose - PR - large winter flocks have dissipated Wood Duck - male at Vogler Pond, Westminster, about 1 week ago Mallard - PR - courtship behavior \ copulation Gadwall - BR, AM, PL, MU American Widgeon - PL, AM Northern Shoveler - PL, AM, MU Blue Winged Teal - PL - at least 3 pairs Cinnamon Teal - PL, AM, MU, DCW - lots of pairs Ring Necked Duck - PL, BR, BL - numbers rapidly decreasing Lesser Scaup - PL, BR Bufflehead - PL - numbers decreasing Hooded Merganser - PL, BR - a few still around Turkey Vulture - PR - migratory flyovers Osprey - PL - today, only 1 Bald Eagle - Stearns Lake - pair still at nest - at least one young seen in nest Cooper's Hawk - PL, AM, BR, DCW, CC, MU - numerous this year. Watched two adults fighting over territory. American Kestrel - PR Red Tailed Hawk - PR - all on nests now Swainson's Hawk - PL, AM, BR, BL - one copulation observed near AM - indicates nesting area selected Peregrin Falcon - Near Bear Canyon, Boulder Mountain Park Golden Eagle - Boulder Mountain Park Wild Turkey - Walker Ranch \ Myers Gulch area - Boulder County Dusky Grouse - 1 near Walker Ranch area - Boulder County Virginia Rail - DCW - 1 heard in cattail marsh American Coot - PL, BR Killdeer - PR - numbers increasing American Avocet - AM, DCW - only a few so far Franklin's Gull - PL - flock of about 30 about a week ago - flycatching, and picking insects off water at Plaster Ring Billed Gull - PR - numbers rapidly decreasing Common Pigeon - PR Eurasian Collared Dove - PR Mourning Dove - PR Great Horned Owl - Westminster, Thornton, Broomfield, Boulder County - young are coming off nests, or already off nests; 7 nest sites Belted Kingfisher - PR Northern Flicker - PR Downy Woodpecker - PR Say's Phoebe - PR - numerous Loggerhead Shrike - DCW - only 1 Blue Jay - PR - numerous Scrub Jay - PR - especially near or in Boulder Mountain Park properties Stellar's Jay - PR - Boulder Mt. Park Black Billed Magpie - PR - nest building American Crow - PR Common Raven - PR Tree Swallow - PL - several with large flocks of other swallows Bank Swallow - PL - several with large flocks of other swallows Northern Rough Winged Swallow - several with large flocks of other swallows Cliff Swallow - PL - several with large flocks of other swallows Barn Swallow PR \ PL - flock of over 100 at Plaster Black Capped Chickadee - PR Mountain Chickadee - Boulder Mt Park Bushtit - PR - gathering nesting materials Pygmy Nuthatch - Boulder Mt. Park White Breasted Nuthatch - PR Red Breasted Nuthatch - several in Boulder Mt. Park House Wren - DCT - Thornton - 2 singing already Canyon Wren - Shadow Canyon, Boulder Mt. Park Marsh Wren - AM Ruby Crowned Kinglet - several at Myers Gulch, Boulder County Blue Gray Gnatcatcher - AM - only one Western Bluebird - several at Myers Gulch, Boulder County Mountain Bluebird - several at Myers Gulch, Boulder County Townsend's Solitaire - Boulder Mt. Park American Robin - PR - fights with blue jays are common European Starling - PR Audubon's Warbler - AM, PL, DCW, CC, MU - coming through in good numbers Myrtle Warbler - AM, PL, DCW - only a few, with Audubon's Warblers Spotted Towhee - PR Savanah Sparrow - BR - only one; being attacked by Red Winged Blackbird Song Sparrow - PR White Crowned Sparrow - PR - still in good numbers at lower elevations House Sparrow - PR Dark Eyed Junco - PR - mostly foothills, most gone from lower elevations Western Meadowlark - PR - courtship behaviors noted Red Winged Blackbirds - PR - bumper crop this year - numerous Common Grackle - PR - hundreds coming through in some areas Brown Headed Cowbird - FF, PL, AM House Finch - PR American Goldfinch - PR - numerous, especially at neighborhood feeders
Animals By sight: Coyote Fox Squirrel Black Tailed Prairie Dog Mule Deer White Tailed Deer Eastern Cottontail
By Sign: Mountain Lion Black Bear Moose Elk Northern Pocket Gopher
And.... blooming: Sand lily, yellow violet, pasqueflower, spring beauty, dandelion, wavy leaf dandelion, purple mustard, biscuitroot, wild plum, chokecherry, skunk bush, yellow current, Oregon grape, and many others
Yeesh. That's enough for now. Nothing rare. Most migrants along the northern Front Range seem to be right on time.
Cheers, John T (Tumasonis), Broomfield CO "I'm not a real birder. I only pretend to be one on CoBirds."
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