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Slaty-backed Gull

Larus schistisagus

ML136317241



eBird Checklist S51910421
Cape Sable Island--Swimm Point
Shelburne, Nova Scotia, Canada
Search this location, Illustrated Checklist
Latitude and Longitude 43.4336, -65.6295 Map

Age
Unknown
Sex
Unknown
Behaviors
Breeding
Tags

Comments

Observation details

Found foraging on a fish meal pile then watched for the next couple of hours.Around the size of a Herring Gull with an all dark, slate coloured mantle and wings. Seemed more attenuated than Herring Gull, slimmer looking. The head through to the upper breast and sides of the neck streaked, heavier around the eye giving it almost a vague eye patch. The legs were deep pink, the bill yellow with a red gonys, long and fairly parallel. The eye was pale. The open wing showed the typical 'string of pearls', the outer primaries being darker than the overall upper wing/mantle colour. On the closed wing it showed well-spaced white primary tips,. There was a bold and obvious tertial crescent.

Technical Information

Model
Canon EOS 7D Mark II
Lens model
EF100-400mm f/4.5-5.6L IS II USM
f-stop
f/6.3
Focal length
400 mm
Shutter speed
1/500 sec
ISO
800
Flash
Flash did not fire, auto
Original file size
96KB
Dimensions
864 x 596

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