Any of a large group of insectivorous birds of the family Tyrannidæ, so named for their penchant for catching their insect prey on the wing. Represented in the North Country by seven species, the Olive Sided Flycatcher ( Nuttallornis borealis), Eastern Wood Pewee ( Contopus virens), Eastern Phoebe ( Sayornis phoebe), Eastern Kingbird ( Tyranus tyranus), and three of the frustrating Empidonax flycatchers, the Yellow Bellied ( Empidonax flaviventris), Alder ( Empidonax alnorum), and Least ( Empidonax minimus). Also known as Tyrant Flycatchers.