Below is a list of endangered and threatened birds of the British Isles. These particular bird species have become endangered or have declining populations within the British Isles and may become extinct in the future.
The most serious threats to bird species are habitat loss, particularly conversion of diverse native forest into often single-species timber plantations and to birds colliding with fences erected to keep deer out of young plantations.
Other threats are because modern farming practices mean that nests and birds are destroyed by mowing or harvesting before breeding is finished. Some birds are declining due to overuse of pesticides and scrub clearance due to human overpopulation. Birds currently on the Red List include the following:
Aquatic Warbler Acrocephalus paludicola (passage migrant through UK)
Capercaillie Tatrao urogallus
Corn Crake Crex crex – globally threateneds
Eurasian Wryneck Jynx torquilla (extinct as breeding species)
Great Bittern Botarus stellaris
Grey Partridge Perdix perdix
Osprey Pandion haliaetus – loss of habitat
Red-backed Shrike Lanius collurio (extinct as breeding species)
Red Kite Milvus milvus – hunting
Scottish Crossbill Loxia scotica (endemic)
Skylark Alauda arvensis
Song Thrush Turdus philomelos
Stone-Curlew Burhinus oedicnemus