My dads only hen (she lives with mine), is acting very strangely. She moves super slowly, didn't eat this morning, and is standing ruffled up looking just plain miserable. She goes to the nest box everyday, but when I go to receive the eggs hers aren't there. Also, this morning I saw her poop out a lot of clear and green liquid. Do you think she is eggbound? And if she is, is there anything I can do for her?