ML613910507

Age

Not specified

Sex

Not specified

Observation details

Rounder head , slimmer bill, much lighter plumage (including primaries) than adjacent HERGs. Primaries were a light dirty grayish color and darker than the tertials, coverts, and mantle. (Having primaries darker than tertials rather than concolor or lighter indicates that the bird is possibly thayeri.) The bill was two toned with a dark anterior section indistinctly separated from its lighter base (as is sometimes the case with first winter birds according to Dunn and Karlson's "Gulls Simplified"). The tail was lightly banded with a "non-solid" brownish band which was visible when the bird was preening. The bill was too slim and not sufficiently sharply bicolored, head too rounded, body too small, and primaries too long for Glaucous Gull. Crummy digiscoped photos taken through small, distant branches included for additional documentation.

Technical information

Model

Canon PowerShot SX740 HS

Lens

2254417/524283-172mm

ISO

800

Focal length

28.1 mm

Flash

Flash did not fire

f-stop

f/5.6

Shutter speed

1/160 sec

Dimensions

1535 pixels x 1571 pixels

Original file size

289.27 KB