I just lost a silkie last week, she felt like there was nothing to her. Now I just went and looked at the other 4 silkies and they also look thin. I used safeguard on them in novemberish... I did the 2 doses. I had lost one and I thought maybe it was worms. So I dewormed the whole flock. I'm not seeing any other symptoms other than the wasting. Well, they do have messy butts. What could be going on here and what do I need to do to figure it out?