Ring-necked Duck x Lesser Scaup (hybrid) - Steven Mlodinow

ML217821831

Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinis

Report

Contributor

Date

Location

Prewitt Reservoir SWA (Washington Co)
Washington, Colorado, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 40.4146305, -103.3787003
Age
Not specified
Sex
Not specified

Observation details

Apparent F2, LESC x RNDU backcrossed with LESC The head shape looks to have RNDU influence, too eccentric for a typical LESC. The back looked darkish. Hard to truly capture in the photos, especially without a cooperative scaup next to it The eye color is not as yellow as that of a male LESC, this time of year, anyway, and the vermiculation on the side is not right for scaup either (blanched out in most photos) The best relatively objective mark is to be seen in the pics with the bird facing right. The black extends proximally, well past the nail along the cutting edge. LESC males do not show this, and the pattern of the black is odd even for a GRSC male (not that this ID is being suggested) At times, the rust neck ring for which the RNDU is named, but is so rarely observed, was visible as well

Technical information

Model
NIKON D810
ISO
640
Focal length
500 mm
Flash
Flash did not fire, auto
f-stop
f/11.0
Shutter speed
1/1250 sec
Dimensions
1400 pixels x 1054 pixels
Original file size
1.07 MB