346 species have been officially recorded (up to Nov 2023) in Avon (for a definition of the area this covers see the recording area) .
This is the official list, which is maintained by the AOG and is updated annually in line with the production of the Avon Bird Report. The list follows the order used by the British Ornithologists Union (BOU).
The list has been revised to include birds of unknow origin.
Birds in Avon
Birds in Avon – an annotated check list