American Kestrel (Boulder Flying Circus Birders) Tags: americankestrel falcosparverius americankestrelcolorado americankestrelboulder wildbirdboulder wildbirdcolorado wildbirdcompany formerwildbirdcenter notwildbirdsunlimited birdseed birdwalk saturdaymorningbirders sagetrail bouldervalleyranchopenspace cityofboulderopenspaceandmountainparks colorado boulder kevinrutherford fernlakephotography