Contributor
Date
Location
- Age
- Not specified
- Sex
- Not specified
Observation details
Notes from initial discovery- Located while it gleaned insects among crumbling tundra clods on the leeward side of bluff. Active, silent. Immediately clear as an Old World warbler. At the time noted the weak pale supercilium, consistently dark brown tone to upper parts with subtly lighter tones to folded wings and tail (possibly due to feather wear). Forecrown appeared subtly darker in front of the eye at certain angles, and quickly faded to background tones (possibly due to raised crest). flat gray tone to underparts including breast, belly, flanks, undertail coverts. Infrequent tail flicking, continually cocked with almost every move. GISS didn't seem consistent with Acrocephalus and Phylloscopus species observed to date. Folded tail appeared thin, proportionally long, wedged (not round), and ragged. Body posture - hunched. Returned with camera. Notes from examining photos taken during second visit- Dark legs and fleshy base to lower mandible continuing along the cutting edge. Flight feathers appear worn and contribute to the slight contrast between folded wings/tail and overall tone of upper parts. Short/moderate primary projection. Alula darker than rest of wing. Notes considering Common Chiffchaff (Siberian)- More likely [than previously reported Japanese Bush Warbler] and similarly drab, but length and cocking of tail seen in this bird seems non-phylloscopus. However, bird did intermittently flick tail. Lacked any yellow-olive tones to plumage, although very worn. No prior experience with species. Thoughts and comments on the ID are appreciated.
Technical information
- Model
- Canon EOS 60D
- Lens
- EF400mm f/5.6L USM
- ISO
- 800
- Focal length
- 400 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/6.3
- Shutter speed
- 1/800 sec
- Dimensions
- 1277 pixels x 870 pixels
- Original file size
- 927.36 KB