A juvenile Red-tailed Hawk peers from a pet carrier on board a humane society van. Photo by Ernie Mastroianni This morning, colleagues down the hall from me noticed a hawk sitting on the grass outside our building. It hadn’t moved much in two hours and didn’t fly away when crows mobbed it. They were curious about its behavior and asked me to have a look. It was obviously a juvenile Red-tailed Hawk, sporting the tell-tale speckled belly band on an otherwise white breast. I’d never seen a Red-t

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