would someone more experienced with the red throat, black throat and great northern divers let me know if they think that these birds would be in breeding plumage by now. (i'm not thinking black throat so much, mind you).
I was in the outer hebrides over easter and saw -
1. a solitary bird, clearly a diver, of good size (in my mind i immediately proportioned its body to a goose), flattish on the crown, dark body, no white side flashes, white throat and the hint of a dark collar coming forward low on the neck. location was a small rocky inlet leading out to open sea.
i cant think this would be anything but a GND and although few would remain here by this stage in the year, any that did i might expect to be more into breeding plumage. thoughts ?
2. a raft of 5 birds, seen at a good distance thru bins, light black bodies with hints of white at the side (very white underneath when rolling to tend to feathers), light grey from the back of the neck to the crown and more extensive white coming up the neck to the bill. bill held up from horizontal. seen in open sea off a sandy beach. again - thoughts ? red throat ?
(i have a photo of 1. that i could post in a few days but only video footage of 2.)