I believe it had field marks consistent with a juvenile "American" (F.p. anatum) Peregrine Falcon described in detail in Brian Whe...

I believe it had field marks consistent with a juvenile "American" (F.p. anatum) Peregrine Falcon described in detail in Brian Whe...
Today while checking for late nesters on my Colo Breeding Bird Atlas block east of Florence,CO, I saw this juvenile Peregrine Falcon fly dow...