Because that means that I'll get new chicks!
I have only three chickens right now -- two of them are young hens and good layers (they're Black Sex Links) and one is an older hen who is STILL molting, a Buff Orpington. I had two Red Sex Links, but both of them were killed by dogs. Naturally the ones that get killed are always my favorites. At any rate, when the feed store stocks chicks again, I want to pick up two Red Sex Link chicks and see if the Buff Orpington will foster them.
Here's the Buff Orpington:
Here's one of the Black Sex Links. You know why these are "sex links?" It's really cool. With the reds, when you cross a female Leghorn with a male Rhode Island Red, the male chicks are white and the female chicks are red. They're color-coded when they hatch! The same goes for the blacks, except the males are black with a little white patch on their forehead, while the females are all black. So if you want to buy layers only (fearing that a little rooster would probably disturb the neighbors!), that's a good way to go.
"How dare you take a picture of MOI?"
Hee! I'm pretty crazy about chickens. Bet you couldn't tell.