Mandt's Black Guillemot
Cepphus grylle mandtii (Lichtenstein, MHK, 1822) (0, 1)
Photo © Graham Catley - Witham Mouth, Lincolnshire, December 2017
Sub-species
STATUS
North-eastern Canada to Svalbard to northern Siberia and northern Alaska.
OVERVIEW
The underwing and upperwing require minute detailing for acceptance and separation of other races after initially noticing the bright white head. First record of this sub-species.
BBRC RECORD
1). 2017 Lincolnshire Cut End, Witham Mouth, 2CY+, 7th to 10th December, photo.
(BOURC (2018), Ibis 160: 941; C. Holt, P. French and the Rarities Committee, British Birds 113: 609; D. Roberts, British Birds 114: 166-167; C. J. McInerny & R. J. McGowan, British Birds 114: 167-171. plate 126; BOURC (2021), Ibis 163: 305).
