1). 1999 St Agnes and all islands, juvenile, 7th to 11th October, photo.
(T. R. Cleeves, Birding World 12 (10): 408-411, photos; Birding World 12 (12): 495, photo; M. J. Rogers and the Rarities Committee, British Birds 93: 526, plates 35, 36, 273 & 312; T. R. Cleeves, M. Hepple & K. D. N. Shaw, British Birds 97: 27-32, plates 15-17; BOURC (2001), Ibis 143: 171-175; Flood, Hudson & Thomas, 2007: plate 33).