A couple months ago I posted here about one of our chicks that developed a scissor beak. The chickens are three months old now, and she has seemed to do OK, eating and acting like a normal chicken, except that she is much smaller than the others. We provide "feed porridge" along with the regular dry feed and she seems to like both, although the porridge seems to be easier for her to scoop up. She spends a lot more time at the feeder than the others and it seems like perhaps it takes a lot more pecking for her to get her fill. But it also seems like she is able to use her beak and tongue to scoop up food with some success. We have tried filing her beak a few times but haven't done very well with it. She really hates it and will get to a point where she thrashes around too much for me to keep holding her still. Today we tried with a Dremel and didn't do much better. It always seems like we could have filed it shorter, although what we have done does seem to help her. Anyhow, today for the first time I got really worried that she might not make it. She was sitting on the ground in the coop and kind of rolling around and seemed distressed, like she was trying to scratch but couldn't stand up. Also I thought perhaps her comb looked a bit pale, but I am totally new to chickens and don't really know what to look for, especially since the hens' combs are barely developed at this stage. I provided a fresh batch of "porridge," and that made her rally and eat ravenously, and seem to be back to normal. So maybe I was just being a nervous new chicken-mom. But I can't help but notice that the other chickens are growing at a much faster rate. I know some scissor-beaked chicks go on to live full chicken lives while others don't make it. I don't want to prolong her suffering, but I also don't want to sacrifice her unnecessarily. So my question is, how can I judge when and if "it's time"? Are there any definite indicators - especially considering they are young birds?