[cobirds] Quick check-in from Rocky Mountain Arsenal National Wildlife Refuge, Adams Co., Mar. 26

Hey, all. Enjoyed a too-quick visit this frigid Sun. morning, Mar. 26, to Rocky Mountain Arsenal National Wildlife Refuge, Adams Co. With Joe Kiesecker, Siyu Qin, and Hannah Floyd. Lake Ladora is biblically infested with virile crayfish, *Faxonius virilis*, right now, and the birds are going to

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (26 Mar 2023) 40 Raptors

Dinosaur Ridge - Denver Field Ornithologists Colorado, USA Daily Raptor Counts: Mar 26, 2023 --- SpeciesDay's CountMonth Total Season Total -- --- -- -- Black Vulture

[cobirds] Common loon, marston rez, Denver co

I rode my bike up to marston to see if the ducks I saw last week were still present. They were and then some. Between the west end and isthmus park, there were easily 50+ greater scaup (and 100+ more scaup I didn’t dig through), 700+ redheads, a smattering of other waterfowl, a couple breeding