Newer flock owner here, I hope someone can help with their opinion.
I have a speckled sussex that is is about 27 weeks old. The last several days to a week I've noticed when she is sitting still with the others (hiding in a bush, standing in front of the door etc), she will close her eyes and raise her head and open her mouth repeatedly. She also has very pale poo on her feathers near her vent (I've noticed watery poo in the coop I think is from her). I attached photos of a month ago vs now (I was trying to tell if her comb was more pale or not. Her skin on her feet are not yellow so it's hard to compare her to the others). Her comb is very small but I guess you could say it is a little more pale than normal. Otherwise, she is eating, drinking and walking around with the others just as normal as ever. Is this something I should be concerned about? What should I do? She won't allow me to touch or pick her up, none of them will.
No new chickens in the flock. I have had all of them since July 4th. I've never treated any of them for anything, everyone has always seemed healthy. In addition to fresh water I also offer a quart of water with a tablespoon of apple cider vinegar (Bragg - organic - raw). They have access to organic feed my local organic farmer mixes for me (been eating for several months), grit and oyster shell. I give them sunflower seeds (raw, unsalted) in the morning and a treat of meal worms in the afternoon. No one has layed their first egg yet.
this morning - my little Dottie (speckled sussex) raising her head with her mouth open.
a few days ago - my little Dottie on the right
my flock about 3 weeks ago..from left - Lucky (Brahma 36 weeks), Dottie (Speckled Sussex 27 weeks), Kramer (Sultan Roo 36 weeks) and Miss Kitty (Cream Legbar 27 weeks).