@nessness -- Breaking a broody hen can be hard . . . they are running a
very serious biological program. The most important one of all, really. We've had a bunch of broodies over the years, and here's what has worked for us:
- As SOON as she starts acting broody, put her in a bare crate somewhere away from the nest boxes with no straw/bedding materials at all. Give her food and water, but don't let her out until she stops setting. This works for most hens, if you catch it early in the first day or two.
- If you don't catch it early and they get into the full swing of brooding, then your chances of success go down dramatically. You can still try the bare-crate-away-from-the-nest thing, but you'll need to be patient. And also emotionally able to deal with how upset she will be. Because she feels like her babies (the eggs) are dying out there without her.
- Or just ride it out -- let her brood until she is done. She will lose a LOT of weight but she won't die, and she will break eventually when she realizes those eggs aren't going to hatch. We just had a broody snap out of it on her own. She brooded for over two months.
- Or, if you have room for more chickens you can give the broody fertile eggs or young chicks. If you don't know anyone with a rooster, fertile eggs are available either through the mail or on Craigslist. If you go the chick route, you have to do it in the dead of night, when she's asleep. Sneak in there and slip them under her 'wingpits', then sneak back out. The chicks will burrow in instinctively. The hen will feel them moving a little, and hear their little cheeps but she won't wake up all the way. The movement and the vocal cues from the chicks switch her from "egg sitting" mode to "mom" mode. You'll know it worked if you check at dawn the next morning and she is sitting contentedly on them and/or broody clucking (low frequency short clucks). NOTE -- the chicks have to be young for this to work -- about 5 days old or younger. The younger the better.
We've done this slip-the-chicks-under thing 7 times over the years, and it has worked 5 times out of 7. When it
doesn't work you need to step in quickly to save the chicks, otherwise the broody may hurt them/kill them. She feels they are not hers, and how she responds to that will depend on her personality. In our two failed attempts, once the broody just tried to frantically get away from the chicks, and once she went for them trying to kill them.
We used to live in the city where we were limited to 4 chickens. We actually let one of our broodies raise several batches of chicks there, and then when they were older we gave them to a friend of ours in the country who wanted more chickens. That was a win-win-win.
Good luck!