When a hen lays an egg the oval gets so big it will rupture out of the follicle and drop into the area where either it'll have an encounter with the male's sperm and be fertilized or it will pass through without being fertilized and just be an egg, it is also this area where salmonella gets into...
Not sure if an emergency or not, might be nothing but Haywire hormones. Apologies now in case this is the improper area to put this post.
So I have a female goose that is started to behave differently, she just started to make changes when she turned 6 months and she's 7 months today...