what do you think about this Shearwater sp. photographed recently at pelagie islands by a birder ?
IMO there are 2 possible ex: 1) its a melanistic morph/plumage of Cory's (Scopoli) as already reported in DB some issues ag?.... 2) its an oiled Scopoli's .... though the plumage look so neat and natural...
What annoy me its the bill structure and colour that appear also dark and slender than should be...almost like a Cape Verde Sh. where sooty plumages are commoner !
However the bill could itself also oiled and appear slender by the darker colour than usual and also by back light photo effect...