The second Black Brant that turned up at Ferrybridge this morning (it's the right-hand bird in the photographs below) was in some ways a more poorly-differentiated specimen than the regular visitor there that's come in for a fair bit of stick as maybe not making the grade for a pure Black Brant - the new bird has at the very least a noticeably paler mantle. We're in no way well-versed enough in the minutiae of brent ID - at least anything fully informed rather than just idle speculation - but what is the problem with the original bird that isn't accounted for by variation within Brants or the vagaries of the photographic process? © Pete Saunders: