Flocks of raptors and waterfowl linger at places like Walden Ponds, Barr Lake and the Kingery Nature Center.
A Snowy Owl at the Boulder Reservoir in 2018. (Peter Burke, Special to The Denver Post)
A Northern Pygmy Owl along the Mesa Trail in Boulder, 2018. (Peter Burke, Special to The Denver Post)
An American Kestrel at Red Rocks Park in Morrison, 2013. (Peter Burke, Special to The Denver Post)
