Which classification of wild animals includes birds that hunt in the air?

The classification of wild animals that includes birds that hunt in the air is upland birds. Upland birds are characterized by their ability to fly and often inhabit fields, forests, and grasslands. They are typically known for hunting or preying on smaller animals or insects while in flight.

In contrast, large and small mammals refer to land animals that vary in size, with mammals generally not characterized by aerial hunting. Waterfowl specifically refer to birds such as ducks and geese that are primarily found near water bodies, focusing more on aquatic environments rather than hunting in the air. Therefore, upland birds stand out in this classification by encompassing those that are adept at hunting through flight.