BirdTrack is an online citizen science website, operated by the British Trust for Ornithology (BTO) on behalf of a partnership of the BTO, the RSPB, BirdWatch Ireland, the Scottish Ornithologists' Club and the Welsh Ornithological Society (Welsh: Cymdeithas Adaryddol Cymru).

[4] BirdTrack allows birdwatchers to record the names and numbers of birds seen in a specified location anywhere in the world.

[5] It acts as a log for those wishing to maintain lists of their own sightings,[3][2] but also feeds data into various scientific surveys,[2] is used for research and conservation purposes,[3] and generates maps for public consumption.

[6] BirdTrack is part of WorldBirds, a global initiative to record bird sightings.

[3] In October 2014, data from BirdTrack was used as evidence in the conviction of a gamekeeper for illegally killing ten Common Buzzards and a Eurasian Sparrowhawk.