Chickens stomping their feet

[Thoughtless]

Does anyone know why chickens in a coop would stamp their feet in the evening? When I go in after dark, there are flying insects that could be like mosquitos or gnats, but not sure what they are. I don't know if the insects are bothering a few of the chickens or is something else is disturbing them in some way. Not all of the chickens do this, just a few.

 

[azygous]

The behavior you describe is often associated with a mite infestation. They hide in the cracks in the coop and come out at night and crawl up the chickens' legs, biting them and driving them nuts.

Go out after dark with a flashlight and take a look under the perches. You might also grab a chicken and check her over for mites crawling on her.