ML226609071

Age

Not specified

Sex

Not specified

Observation details

Found yesterday by Jessie Reese and Matthew DeSaix. Thank you. Bird was foraging for animal matter along Spring Creek which is currently moving fairly well and somewhat resembles a mountain stream. Bird walking on rocks, shore, creekside ground vegetation. Bobbing regularly. Supercilium most prominent ID feature being bright white, wider behind the eye, wrapping around back of head to within an inch of supercilium on the other side. Supercilium whiter than any other part of this bird. Beak thicker and longer than Northern Waterthrush. Legs pale pink-orange, not deep reddish-brown like typical Northern Waterthrush. Underparts marked with rather sparse, narrow stripes and pale areas showed buffy wash. Throat white and unstriped. Saw it catch one annelid worm (see photo). Do not know if this was a terrestrial or aquatic annelid but it came from an area of reddish willow roots and "mossy" (unidentified) groundcover, so probably terrestrial species. Saw it catch many other unidentified insects, but would be surprised if chironomid midges weren't among the prey. Bird did not vocalize in any way.

Technical information

Model

Canon EOS 7D Mark II

Lens

EF100-400mm f/4.5-5.6L IS USM

ISO

640

Focal length

400 mm

Flash

Flash did not fire, auto

f-stop

f/10.0

Shutter speed

1/800 sec

Dimensions

2852 pixels x 2039 pixels

Original file size

261.23 KB