Recent changes to the British and Irish list

The Records Committee of the British Ornithologists' Union has recommended in its sixth report {Ibis, 113: 420-423) that the list of British and Irish birds maintained by the Union be categorised as follows: A. Species which have been recorded in an apparently wild state in Britain or Ireland at least once within the last 50 years. B. As A, but not within the last 50 years. C. Species which, althou...