Which Diver (Kilcoole, IRL, Oct 15) (1 Viewer)

pianoman

duck and diver, bobolink and weaver

• Oct 18, 2017

• #1

I guess this has to be Red Throated, just can't quite nail the plumage. Immature/transitional perhaps?

Thanks

Andrew

 

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Andy Adcock

Worst person on Birdforum

• Oct 18, 2017

• #2

Do they have a transitional plumage?

I think an adult in winter would have a much whiter foreneck?




A

 

Last edited: Oct 18, 2017

S

SteveClifton

Well-known member

• Oct 18, 2017

• #3

Dusky/streaky neck-sides make this a Juvenile. As Andy says adults are much whiter and more sharply defined about the head and neck.

 

Last edited: Oct 18, 2017

pianoman

duck and diver, bobolink and weaver

• Oct 19, 2017

• #4

Thank you both. I'll put it down as Juvenile RT. This time of year I sometimes see adults still in breeding plumage but hadn't seen this pattern before.