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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Are these Gt Northern Divers (2 Viewers)

Apart from one or two most helpful posts in the tone of 'Come on you noddies, they're so obviously GND - don't you OWN a fieldguide?' this thread has been quite instructive. At least one highly competent observer (and for a while, another, amazingly competent observer ;) ) went with BTD. You'd think a photo would clinch ID, not muddy it. In the field it would no doubt have been a different story. Just confirms, for me at least, that photos are not always useful. Bet there are a few genuine rares that have been rejected on the strength of unconvincing photographic 'evidence', even though the bird itself was indeed the real McCoy..........
 
Harry Hussey said:
Hi John,

Why is it necessary to obtain a photo of large numbers of GNDs together, when you accept that they do flock, and the birds at the start of this thread can be identified as GND on plumage and structural features...?
By the way, half decent numbers of Black-throats DO occur over here, mainly at Ballyvaughan, but ,anywhere else, GND is far more likely, and, as I found out when I first visited Ballyvaughan, GND is also common even there.
Regards,
Harry

I just thought it would be rather nice to see a flock of GND's.

John.
 
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