Most Americans think of crows and ravens this time of year, but in my neck of the woods it's cowbirds. I might see two crows all year, and I don't think I've seen a raven since the last time I went to the bird exhibit at the zoo. Cow bids are easily spotted, because they have greenish black heads and brownish black bodies. They lay their eggs in other birds nests, and when the hatch-lings are fledged they make their way to the closest flock. Parasitic birds are creepy, right?