Hello this my first post but I have 2 silkie roosters and a silkie hen all 4 months old. About a week and a half ago I noticed my silkie hen was puking up little bits I thought maybe she had just over eaten and wrote it off. Over the next few days I would see her do it again every once in a while if I paid attention very closely. I started to get concerned and took her to the vet. At the time i took her to the vet her crop was mostly empty so the vet does not believe its sour crop. Vet wants to do blood work and xrays. Chicks were on antibiotics because of sneezing about 1 month previously. To me still seems like it could be sour crop. But now i just saw one of the Roos puke up a little too. Everyone has good energy and good appetites all of their crops arent large at all. I did put out a kefr milk with oatmeal yesterday for them to see if that would help at all. Only other thing i can think of is the roo and the hen who have puked now do have two different colored eyes and hen has scissor beak. Genetically the two seem like a little bit of a mess. But like I said they have good energy and appetites so im kind of at a loss. : (