List of birds of the United States

A comprehensive listing of all the bird species confirmed in the United States follows. It includes species from all 50 states and the District of Columbia as of July 2022. Species confirmed in other U.S. territories are also included with other "as of" dates.

The birds of the continental United States most closely resemble those of Eurasia, which was connected to the continent as part of the supercontinent Laurasia until around 60 million years ago. Many groups occur throughout the Northern Hemisphere and worldwide. However some groups unique to the New World have also arisen; those represented in the list are the hummingbirds, the New World vultures, the New World quail, the tyrant flycatchers, the vireos, the mimids, the New World warblers, the tanagers, the cardinals, and the icterids.

Several common birds in the United States, such as the house sparrow, the rock pigeon, the European starling, and the mute swan are introduced species, meaning that they are not native to North America, but were brought there by humans. Introduced species are marked as (I). In addition, many non-native species which have individual escapees or small feral populations in North America are not on the list. It is especially true of birds that are commonly held as pets, such as parrots and finches.

The status of one bird on the list, the ivory-billed woodpecker, is controversial. Until 2005, the bird was widely considered to be extinct. In April of that year, it was reported that at least one adult male bird had been sighted in the Cache River National Wildlife Refuge in Arkansas. The report, however, has not been universally accepted, and the American Birding Association still lists the ivory-billed woodpecker as extinct.

Hawaii has many endemic bird species (such as the Kauaʻi ʻelepaio) that are vulnerable or endangered, and some have become extinct. The number of birds on Guam has been severely reduced by introduced brown tree snakes^[1][2] — several endemic species on Guam (such as the Guam flycatcher) have become extinct, while others (such as the Guam rail) have become extinct in the wild. Guam rails have since been reintroduced to the wild on Guam and Rota.^[3] There are many endemic bird species in Puerto Rico and the Northern Mariana Islands, while American Samoa has South Pacific bird species (such as the many-colored fruit dove) found in no other part of the United States.^[4][5][6]