LETTER from TERRY BERKSON The Jumping Chicken Of Otsego County Got a call the other day from my friend Charlie in Brooklyn. He said that he was thinking of getting a couple of chickens to keep in his apartment so that he could get really fresh eggs. I got on my high horse and asked, “What do you know about raising chickens?” “I’m good with birds,” Charlie countered. “Remember how I taught my parrot to stand on his head for…