Black-tailed Gull

Larus crassirostris

ML161889391


©
Chris Hayward
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eBird Checklist S56917669
Gazos Creek Beach -- west of Hwy 1 only
San Mateo, California, United States
Search this location, Illustrated Checklist
Latitude and Longitude 37.1664, -122.3618 Map

Age
Unknown
Sex
Unknown
Behaviors
Breeding
Tags

Comments

Observation details

Medium sized gull in breeding plumage. Smaller and more slender than near by California Gulls. Pale eye with distinct red orbital. Bill fairly long parallel edged, yellow at base with black and red markings at the tip. Pure white head, chest and lower parts. Slate gray upper parts, black wing tips with faint primary tips. Scant white scapular and tertial crescents. Seen in flight showing white tail at base, with black sub terminal band and white tip. Legs and feet bright yellow. Many photos taken

Technical Information

Model
Canon PowerShot SX60 HS
f-stop
f/6.5
Focal length
247 mm
Shutter speed
1/640 sec
ISO
100
Flash
Flash did not fire, auto
Original file size
2,157KB
Dimensions
4185 x 3297

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