Something I've learned in the last few years:
A hen will go broody on fertile eggs.
A hen will go broody on infertile eggs.
A hen will go broody on those porcelain false eggs.
A hen will go broody on an Easter basket full of plastic eggs and jelly beans.
A hen will go broody on a nest full of ping pong balls.
A hen will go broody on a light bulb.
A hen will go broody on a glue bottle.
The same hen will refuse to lay in a nest with golf balls.
I don't know. Chickens can be crazy sometimes. If you are in doubt, catch her off the nest and candle the eggs in about a week or so. If they aren't fertile and you want chicks, get some fertile eggs for her and replace the ones she is sitting on.
A hen will go broody on fertile eggs.
A hen will go broody on infertile eggs.
A hen will go broody on those porcelain false eggs.
A hen will go broody on an Easter basket full of plastic eggs and jelly beans.
A hen will go broody on a nest full of ping pong balls.
A hen will go broody on a light bulb.
A hen will go broody on a glue bottle.
The same hen will refuse to lay in a nest with golf balls.
I don't know. Chickens can be crazy sometimes. If you are in doubt, catch her off the nest and candle the eggs in about a week or so. If they aren't fertile and you want chicks, get some fertile eggs for her and replace the ones she is sitting on.