Dutch Birding

Pacifische Parelduiker

Gavia pacifica  ·  Pacific Loon

Pacifische Parelduiker  ·  Gavia pacifica  ·  24-10-2025  ·  Wouter van der Ham

Datum 24 oktober 2025
Locatie Schiermonnikoog
Fotograaf Wouter van der Ham
Bekeken 2042 ×

Discussie

Diedert Koppenol
 ·  6 november 2025  17:53, gewijzigd 6 november 2025  17:53

Erg lekker (sfeer)plaatje!

Leo Stegeman
 ·  6 november 2025  22:09, gewijzigd 6 november 2025  22:09

Ongelooflijk dat de zelfde vogel 2x langsvliegend wordt gefotografeerd...

Andreas Noeske
 ·  7 november 2025  09:00, gewijzigd 7 november 2025  09:00

Figure 1. On the basis of range, this adult, basic-plumaged Arctic Loon photographed in February in Japan is presumably G. a. viridigularis. ... This individual is unusual in that it has at least a partial vent-strap, a character more typical of Pacific Loons.

Figures 6 and 7. These specimens at the Museum of Vertebrate Zoology, University of California, Berkeley, depict differences in vent-straps between Pacific and Arctic Loons. ... The presence or absence of a vent-strap may be helpful in identifying flying birds.

Cited from ARCTIC AND PACIFIC LOONS FIELD IDENTIFICATION

Flying (moulting) birds identified/labelled as Arctic Loons showing a vent-strap as possible ID pitfall:

8 Nov 2020, Ukraine

18 Oct 2022, Estonia (date close to the Schiermonnikoog bird on 24 October 2025)

25 May 2024, Denmark

12 Sep 2024, Russia

14 Dec 2024, Spain

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