one of a minimum of 14 birds at N Hykeham today….
This 1s bird was a right brute (presumably a male)…..2cy casps and michs are very similar in terms of plumage but note;
*’squarer’ head shape
*lack of ventral bulge (although some casps also lack this)
*duller bill (Casps bills get paler quicker)
*vestiges of a dark eye surround but mainly bleached/worn off now
This bird is missing most of its G covs thus revealing the dark underlying secondaries, the few central G covs that remain are bleached white.