White-tailed Kite

White-tailed Kite - Elanus leucurus

Although some populations fluctuate regularly in size, it is unknown whether this species is migratory, nomadic, or both.
The Birds of North American, No. 178, 1995

For those with a Penn State access account read about the White-tailed Kite in Birds of North America online at http://bna.birds.cornell.edu/bna/species/178/articles/introduction