Birds of flight
I just had strange thought the other day, how many birds of flight are typically available to eat?
Include Chukar in those rocky, arid parts of western states, although they tend walk as much as fly.
Depends on what you mean by "birds of flight." Most birds fly at least a little. Of the birds we eat, only ostrich and emu are truly flightless.
Most poultry comes from the order galliformes: chicken, turkey, pheasant, partridge, guinea hen, quail, etc. These birds tend to stay on the ground most of the time, but will take wing when necessary. (Except inbred industrial turkeys; they can't even walk.)
If you're defining "birds of flight" as birds that spend large amounts of time airborne, there are a few migratory species that are used for food. Ducks, geese, pigeons (squab) and doves all make it to the dinner plate on a fairly regular basis.