20171030 bleached Dark-bellied Brent Goose. Kelling Water Meadows

Is that a pale or grey belly?

Note brownish-grey feathers on back within the mid-grey.
SJMG commented, rather bleached Dark-bellied, Pale-bellied look much cleaner.
AMS commented, the dark belly extends back between legs enough to eliminate Pale- bellied....the wash on the fore-flanks and belly is clearly grey, any wash here should always be slightly brownish on Pale-bellied.
In addition note the pale barring on the upper flanks does not extend down onto the belly or forward enough onto the breast to meat the black neck area.

Dark-bellied Brent Goose

Pale bird flew in with these 2. Note odd upper belly patch on left bird.

20171210 Pale-bellied Brent 

In with flock of 400 Dark-bellied near Gravelpit Hill.

Extensive white in flanks on this bird.