I live in a city so overrun by crows that some days I am sure I'm stuck in some Hitchcockian nightmare. Every morning I wake up to the birds' cacophonous squawking, a sound that is now lodged in my psyche in the most obnoxious way. I don't have to set an alarm clock; by 6 a.m. I am sure to be awakened by the ubiquitous chorus of caw.