This summary of the birds of Nebraska has been restricted to those species that have been convincingly reported at least once in Nebraska from historic time to the present. It has also been modified in its current revision to conform very closely in that regard to the most recent Nebraska Ornithologists’ Union’s Official List of the Birds of Nebraska (Brogie, 2010; NOU Records Committee, 2011 and annual updates). The N.O.U.‘s official state list of birds (455 species as of 2013, including 329 regular species, 42 of casual occurrence, 68 accidentals, and six extinct or extirpated species) is based on actual specimen evidence or some other convincing basis of each species’ proven occurrence in the state. I have followed the N.O.U. species list closely, although my terms of relative abundance and status often differ. The latest American Ornithologists’ Union taxonomy (AOU Check-list of North American Birds, 7th edition and later supplements) is followed here.