Puns are fine. Coincidentally, I chose my screen name for the bird. Some years ago, I happened to make the heinous mistake of suggesting that a bird hunting in my yard was a peregrine falcon. My daughter, who has followed the Radisson birds for years before me, rolled her eyes and said, "Oh Mother! It couldn't have been a peregrine. (and she proceeded to tell me all the reasons why). It was probably a Cooper's hawk."
But, sure it could have been a hawk or other sort of falcon. However, the colouring, the stance of the bird and other more subliminal factors (I've observed the falcons on the letters more times than I can could count), suggests to me, I saw what I saw.