Whimbrel (White-rumped)

Numenius phaeopus phaeopus/alboaxillaris/variegatus

ML176666501


©
Peter Pyle
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eBird Checklist S59693396
Ocean Beach--seawatch across from Oceanside Water Polution Plant
San Francisco, California, United States
Search this location, Illustrated Checklist
Latitude and Longitude 37.7294, -122.5069 Map

Age
Adult
Sex
Unknown
Behaviors
Breeding
Tags

Media notes

Eurasian Whimbrel, SF. Photo: Paul Saraceni

Observation details

Found by Paul Saraceni, seen by several through about noon and then again later this day at south end of Funston Beach. Most probably "Siberian Whimbrel" (P. p. variegatus) but looking on line I can't see that nominate P. p. phaeopus is eliminated due to substantial variation across Eurasia (with exception of "Steppe Whimbrel") and overlap of characters. See also Heindel 1999, North American Birds, 53:232-236. Adult, having commenced primary molt - p1/p1 new or growing, p2/p2 dropped. Gaps in p4-p5 area of both wings appear to represent adventitious feather loss or breakage rather than molt. Outer primaries and secondaries show "molt clines" indicating at least one previous prebasic molt and a bird (ASY) of 27+ months of age. Excellent bird - seen by me briefly sitting on beach (where I could not tell it from the 6 hudsonicus WHIMs present in the glare of the sun) and then flew directly under our observation position (about 30 m away) into better light. These photos taken by Paul Saraceni represent what I saw in the field.

Technical Information

Model
Canon EOS 7D Mark II
Lens model
EF100-400mm f/4.5-5.6L IS II USM
f-stop
f/40.0
Focal length
400 mm
Shutter speed
1/640 sec
ISO
2000
Flash
Flash did not fire, auto
Original file size
325KB
Dimensions
926 x 617

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