Are there areas in Oregon that we need to watch for buffalo gnats bothering our poultry? I live in Jackson County, in a rural area between Eagle Point and Shady Cove, roughly 1/2 mile (as the crow flies) from the Rogue River and our neighbor has a small year-round pond, next to our property.
These are not significant pests of chickens. Since chickens are covered with feathers, these pests cannot easily get to the birds' skin.
Of course, anywhere that have significant issues of these pests with other livestock, some problems may be seen in chickens.