ML174827351
Contributor
Date
Location
- Age
- Not specified
- Sex
- Not specified
Observation details
Originally thought this was a hybrid due to one being in the area somewhat recently, but experts have weighed in that this is a pure American. Unmarked white underside and underwing, white base of tail, and more field marks detailed in the Jehl scale completed by Stan Walens (the bird scored a 34 and only needed a 30 to be considered pure American). Seen a few hundred feet north of the tide pool parking area on a large, flat rock. It seemed particularly fond of one of the Black Oystercatchers as it followed the Black around constantly, barely interacting with the other two. Did not move from this rock during the 30 minutes of observation. Jehl scale: CHARACTER STATE AND SCORE Uppertail coverts 3 - white, a few black mottlings Tail 3 - basal half of rectrices white Edge on upper breast 3 - black chest band bordered by ragged Belly 6 - entirely white, as in palliatus Undertail coverts 3 - mainly white Thighs 4 - entirely white, as in palliatus Greater secondary coverts 3 - 6-15 mm (width of white edging in folded wing) Extent of white wing stripe 2 - white markings extend to outer secondaries, but not onto primaries Underwing coverts 3 - mainly white Axillars 4 - white, as in palliatus
Technical information
- Model
- iPhone 6s
- Lens
- iPhone 6s back camera 4.15mm f/2.2
- ISO
- 25
- Focal length
- 4.2 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/2.2
- Shutter speed
- 1/587 sec
- Dimensions
- 1097 pixels x 1464 pixels
- Original file size
- 413.55 KB