I suspect one of my new chicks has a blocked crop. I am new to this so I can't be sure, but that is what it seems like. I noticed it about three days ago and it never goes all the way down. Last night I took their food away overnight and this morning I could still clearly see this one chick's crop was still enlarged, albeit not AS large as it had been. I think SOME food is getting through. So far I have added ACV to their water and tried massaging it some, but I am afraid to try to make it regurgitate like I have seen advised for adults. While I think she is still getting some nutrients through, I can tell she is smaller than the other two that are the same age and I am worried she isn't getting enough. What can I do!?