13 November 2011
He's only ickle
Body size: very small, only seen in close association with UK feral Canada Goose (mostly canadensis? Referred to here as canadensis) although Greenland White-fronted Goose and Barnacle Goose also present. Body length appeared approximately two thirds of canadensis but much less in bulk (you might get three to every one canadensis; or, to put it another way, if a canadensis is 3 hours at Gas mark 6, then this bird would only be 1.5 hrs). Whilst not seen alongside one another, it seemed slightly smaller than Barnacle.
Neck: quite thick and, at all times, very short, even when extended during pre-flight anxiety behaviour.
White 'cheeks': quite extensive and, though thinning slightly, still broad and square-ended at top.
Collar: clean white, quite deep on fore-neck thinning, and petering out, on sides.
Black chin stripe: lacking, although perhaps a slight 'dent' of black below the bill (maybe).
Voice: not heard (yet)
Structure: proportionately narrow in 'arm' and 'hand', quite a pointed wingtip; horizontal carriage; steep forehead and square head shape.
See here for discussion and photos of the recent (near identical) bird at CVL, Blagdon Lake and Torr Reservoir (co-travellers or co-escapees?); and see here, and the references therein, for a good starting point to a white-cheeked goose inspired mental disorder.
Posted at 11:46