SOME OF MY dearest friends are crows. Yes, I know that farmers don’t like crows and get mad at them for pulling up tender corn shoots. On the other hand, during one season on an average farm, crows gobble up some nineteen bushels of harmful insects. So, maybe it all sort of balances out. Of the same family as jays, ravens, magpies, rooks, and jackdaws, the common crow is uncommonly smart, bold, and sassy. Crows can learn to talk—if they want to and you’re patient—and say a lot more than “Caw.” As I’ve heard from the clan of crows who perch in my backyard trees, they bark, squawk, gargle, and make clacking noises. If they see a cat in the bushes, they all set up an earsplitting chorus of what…