Are you going to get fertile eggs and let her try to hatch them? If not, broodys can go on quite awhile, months sometimes, if you don't keep them off the nest or "break" them of being broody. .. They don't just stop at three weeks... and many will continue to sit in nests even if the eggs are gone. For broody breakers I usually just use a wire dog crate, size doesn't really matter, bottom wire spacing is usually around 1x4". I put a couple of perches in there and hang small food/water dishes on the sides so they can't stand or sit in them. Put the crate out in the open, I tend to put them in the middle of the barn aisle or coop so there is a lot of activity and light. They don't like to walk on the wire so they spend pretty much all the time on the perches, that works pretty well for most of them. Some people have mentioned putting a small fan under them to cool them off even more. They will usually start laying a couple of weeks to a month after they stop being broody, unless they go into molt, then they take longer.
Fake eggs are good to keep in nesting boxes all the time, to keep your laying hens laying there, and to help prevent things like egg eating... so I would leave the fake eggs in the nests and get the broody out of there.
Fake eggs are good to keep in nesting boxes all the time, to keep your laying hens laying there, and to help prevent things like egg eating... so I would leave the fake eggs in the nests and get the broody out of there.
