I have a cochin that has become extremely broody over the last couple days. I think she even slept on the nest last night. I took her out this afternoon and put her next to the food, and she ate, but I haven't been able to go out since then due to a rainstorm. (edited to add: she is back in the nest)
We've only had her since February, and until now, she'd hang out on the nest maybe 1 day out of 10. She's approximately 10 months old. She lays the tiniest eggs, but she's prolific and produces an egg almost every day. We have no rooster - just 5 hens of varying ages and breeds free ranging in our urban backyard.
Is there any downside to her behavior, other than that she might not eat enough? I don't mind forcing her off the nest daily to eat, but I feel bad for her. They are our pets, so getting rid of her isn't a choice. And since her eggs are so tiny, it's not like we'll notice one less (haha).
--janis