I find a few here and there on firearms deer. November deer have some. October deer seem to have more. Setting on stand in a warm October afternoon sun seems to be the worst of it for me. They attach themselves to ya, shed their wings, and work their way to the back of your neck and bite. They leave a small itchy knot that takes weeks to go away.

I've not had any on the NY deer I harvest in Chenango County though.