Prehistoric bird

Prehistoric birds are various groups of birds that lived before recorded history. Most proto-birds started out as feathered dinosaurs and evolved mostly into birds that resemble their modern-day counterparts with the exception of achieving a much larger size in many cases.

Here are a few examples:

See also

See also: Prehistoric bird, Animal, Archaeopteryx, Argentavis magnificens, Bird, Confuciusornis, Diatryma, Dinosaur, Gastornis, Genyornis