Pomarine Jaeger (Stercorarius pomarinus), Rotary Park, Mohave County
This Pomarine Jaeger was
discovered by David Vander Pluym, Lauren Harter and John
West and photographed by David Vander Pluym and John
West on 13 November 2011.
Identification points include these details written by
David Vander Pluym:
The bird appeared dark and was noticeably larger than the Ring-billed Gulls.
Showed a contrasting dark face with a pale head, that also contrasted with the
Strongly bicolored bill
Barred underwing coverts that contrasted with the flanks.
Contrasting undertail coverts
From the Photos:
Double underwing flash with a white bar on the primaries and dark tips with
white bases to the primary coverts, forming another white bar
Underwing coverts boldy barred and strongly contrast with the dark body
Undertail coverts strongly barred and continue slightly onto the lower flanks
and contrast strongly with the body.
The dark face and pale head is somewhat visible.
From the next day the paler head contrasted with the darker face and body. The double wing flash was also visible.
13 November 2011, photo by David Vander Pluym
13 November 2011, photo by John West
All photos are copyrighted© by photographer
Submitted on 17 November 2011