1.Most commonly used to describe a woman that one is aware of as being materially obsessed , and morally corrupt ,but never the less finds highly physically desirable for the moment.
2. Deroggatory form of Chick
"I dropped the bird off and then chirped out."-Ice Cube "She ain't nuthin' but a bird."- guy on the 6 train
Version of the "Birds and the Bees" sex talk that parents give children. Previously taboo, more and more parents feel the need to educate their children on not just when a man loves a woman, but when a man loves a man, and a woman loves a woman.
The Birds and the Birds would be two lesbians, as bird is also a slang term in 60's Britain for a woman. Also, a bee, because of its stinger (typifying a penis), would be a gay man.
"According to Robert Claiborne in Loose Cannons and Red Herrings, it refers to city streets as they were before cars. "When I was a youngster on the streets of New York, one could both see and smell the emissions of horse-drawn wagons. Since there was no way of controlling these emissions, they, or the undigested oats in them, served to nourish a large population of English sparrows. If you say something's for the birds, you're politely saying it's horseshit."