My one pullet (3 1/2 months has some swelling right where her nostrels are. I touched the area and she didn't seem bothered, it doesn't appear to hurt. Do you think she could have pecked a wasp or been bitten by a bug? Or could it be someting worse? Thanks! P.S. I still haven't figured out the picture thing, but it looks like a mosquito bite, but on her beak!