My two RIR pullets, (about 20 weeks). I have been letting them out every night an hour or two before sunset to just be chinkens I guess, and for the laughs. Then the other night I put them in and they went nuts, clucking and making all sorts of noise. They were trying to get through the fencing and everything. What the heck? Now when I go out at dusk (I have not let them out in the last few days), they are neurotic walking back and forth along the fence when they see me. Any idea why they are acting so weird?