Okay, I have an idea what broody chicks do cos one of our magpies went through it last year. We thought we'd lost her then found her under the upturned wheelbarrow sat on 9 eggs! But the same chicken and her sister magpie are now both acting weird. We have 4 chickens = 4 eggs/day but recently down to 2 and today only 1 egg (not even sure which little girl is laying even!). The two magpies stay in the coop all day, sometimes sat on an egg in the morning but once they have been removed they just SIT there doing nothing. (I remove the eggs every morning) I have to lift them out for them to feed and drink and they go back in straight away afterwards. If I lock them all out of the run for a while to roam the garden the magpies start prowling around the fence perimeter looking anxious and desperate to get back in after a few minutes. They will even retreat to a corner of the fencing and sit on the grass waiting. They fluff themselves up constantly. If they are broody, why aren't they sat on eggs? Do you think they could be eggbound? This has been going on for nearly 2 weeks now with no sign of it stopping. But they are eating and drinking.