Our 10 month old Buff Orp has been displaying some strange behavior. She acts like she has gone broody: staying on the nest long periods of time, fluffing up when anyone or another chicken comes near, hissing and screeching like something out of Jurassic Park. I've heard that Orpington's go broody at the drop of a hat, so doesn't seem so strange....except she only does it a few hours out of every day. She is exceptionally tame with people, so she doesn't give us any problems collecting eggs, amd if we remove her from the nest, she will shake her feathers out and go about her day. If the other girls are doing something that seems interesting (food...interesting always means food to my girls), she will hop right off and join the others. Same with free ranging time. This has been going on about 2 months. We haven't tried to "break" her of the broody cycle because it hasn't caused any problems, hasn't prevented her from eating/drinking, etc. I'm sure the other girls would like her to quit hogging the "good" nest, but other than that, no real issues. It just seemed strange to me and I haven't had much luck finding other posts describing the same behavior, so thought I would ask if anyone has had chickens acting in this way. I work during the day, so I couldn't say exactly how long she is on each day, but I would guess 4-5 hours? She does not sleep in the nesting box.