1). 1856 Killingworth, male, shot, 5th October, C. r. ruficollis, now at Great North Museum: Hancock, Newcastle-on-Tyne (Acc. No. NEWHM 1999. H1071).
(J. Hancock, Transactions of the Tyneside Naturalists' Field Club 5: 84-85; J. Hancock, Zoologist 1862: 7936-7937; J. Hancock, Ibis 4: 39-40; Yarrell, 1871-85; J. T. T. Reed, Naturalist 12: 76; Bolam, 1912; BOURC (1927), Ibis 69: 312; Galloway & Meek, 1978-83; N. Cleere, British Birds 94: 393; BOURC (2006), Ibis 149: 195; T. Melling, British Birds 102: 110-115, plates 79-81).