The other day i noticed some "boogery" substance coming out of our chicken pickles' nose... Since then it is gone but i have noticed that she's been sneezy / coughing when i feed them their scratch treat for a little while now, and she eats mostly by grabbing something in her mouth and tilting it back down (kind of like making a big gulp), she doesn't obsessively pick the ground like the other chickens...every time she eats she lifts her head to swallow it seems like. We have just recently found lice on our flock of 6 birds and have just started treating them, but she had the eating thing already. Sometimes she would shake her head after and "cough" like she swallowed something funny. I thought this was just how she ate, but now since researching about it all after i saw the boogers it seems like perhaps she has a respiratory problem? She's still very active and very much interested in food (maybe too much!) and it seems like most respiratory problems they go off their food and have other issues like in their eyes, etc which she doesn't have. We do have them in an older coop that we made from an old shed we converted, were hoping to replace it in the next few months or so with a new one were going to build, could it be a problem with ventilation? I've noticed that a few of the other chickens have raspy voices since I had to chase them about in the coop to catch them in order to treat them for the lice so could this be an issue with our old coop being too dusty and potentially causing a bacteria instead? One of our chickens, little miss brown, has the worst raspy voice and is quite thin, she is the lowest on the pecking order but she eats all the same like the other girls i think...is she just a smaller bird or is something else going on? We were given these chickens from a farmer who was going to cull them as they had to many, which in turn when we acquired them had to treat for leg mites and also poor weight (they were very skinny and beginning to molt) so we upped their protein right away. They got so much better in a few months, but at the same time i feel like it's one thing after another with them... Is it something were doing or could it be that the farmer gave us their unhealthy chickens they were culling for another reason? I'm really not sure what to do in this situation and there isn't really any vets around that deal with poultry...their all for cats and dogs pretty much. I would hate to misdiagnose and create it to be a bigger issue than it is (i kind of do that with our dog already...) so I'm worried I might be over-reacting? This is Pickles with the eating thing but no nose booger (she is the top hen and high on the roost). these two are pictures i got of the booger-ish substance. Pickles is in the back, little miss brown in the front (casper in the middle) Pickles in the back, little miss brown in the front (casper in the middle) Little miss brown with the raspiest voice (lowest on the roost and pecking order). thank you in advance!