White-winged Tern - Jason Weckstein
Report

Contributor

Date

Location

John Heinz NWR--impoundment (Philadelphia Co.)
Philadelphia, Pennsylvania, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 39.8893501, -75.2601457
Age
Not specified
Sex
Not specified

Observation details

Small black Chlidonias tern. Bird found by Adrien Binns and photographed. White tail contrasts with Back. Splotchy black underwing coverts (mostly black). Adult plumage molting into basic plumage. Pale upper wing coverts.

Technical information

Model
Canon EOS 7D
Lens
EF100-400mm f/4.5-5.6L IS USM
ISO
1250
Focal length
400 mm
Flash
Flash did not fire, auto
f-stop
f/7.1
Shutter speed
1/320 sec
Dimensions
1789 pixels x 1324 pixels
Original file size
244.35 KB