2000 in birding and ornithology

New species

 * See also Bird species new to science described in the 2000s


 * Foothill elaenia Myiopagis olallai from Ecuador and Peru is described as new to science in The Wilson Bulletin
 * Caatinga antwren Herpsilochmus sellowi from Brazil is described as new to science in the American journal The Auk
 * Taiwan bush-warbler Bradypterus alishanensis is described as new to science in the American journal The Auk
 * Scarlet-banded barbet Capito wallacei is described as new to science.

Rediscoveries

 * Four pairs of Chinese crested terns are found breeding on the Matsu Islands, the first sighting anywhere in the world since 1991.

Taxonomic developments
To be completed

Deaths

 * 12 April - Ronald Lockley (born 1903)

Breeding birds
To be completed

Migrant and wintering birds

 * Several hundred European honey buzzards pass through during the autumn.

Rare birds

 * Two zitting cisticolas in Dorset are the third and fourth for Britain.
 * A Swinhoe's storm petrel near Aberdeen in July is the first for Scotland and eighth for Britain.
 * Britain's first Siberian blue robin is seen in Suffolk during October.
 * Britain's first long-tailed shrike is found in the Outer Hebrides in November.

Other events

 * The British Birdwatching Fair has albatrosses as its theme for the year.

Ireland

 * A blue-winged warbler at Cape Clear in October is the first record for Europe.

Scandinavia
To be completed

North America
To be completed

Asia
To be completed