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.
See also "The Bees and the Bees."
In today's modern society, it is important that your son know not only about "The Birds and the Bees," but also about "The Birds and the Birds."
The act of holding a fart through a date which leads to a climatic event that feels similar to that of blowing a small bird out your ass at high pressure
(conversation between friends after leaving their dates)
example 1:
friend 1: "Dude!, whats that smell?"
friend 2: "I just blew out a bird man! I was holding it all through the movie."
Example 2:
"Don't sit next to Christina, I think she has been blowing out birds."
A logical reversal of the old saying, " a bird in hand is better than two in a bush. Because people dont chase birds much anymore and a hand in the bush is much better.