Emperor x Greater White-fronted Goose (hybrid) - Mike Peters

ML406119581

Emperor x Greater White-fronted Goose (hybrid) Anser canagicus x albifrons

Report

Contributor

Date

Location

Colusa NWR--Auto Tour Route
Colusa, California, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 39.1851525, -122.0507795
Age
Not specified
Sex
Not specified

Observation details

A mid sized dark goose with a mostly white head. The belly, chest and neck are darker then the back. Back brown with more blue/gray tones then the rest of the body. Rump and tail pale. The head is primarily white but has a triangular brown check patch. Bill pale with pink distal half and a large white nail. Bill also had a thin black "grin patch". Bill is thicker and shorter then that of a greater white-fronted goose. Based on comparisons of photos of captive raised emperor goose x GWFG hybrids that I found online and 2 other observations I made of emperor goose X GWFG hybrids a few years prior to seeing this bird, this bird shows stronger emperor goose plumage and bill shape/color. Based on this I think this could be a F2 hybrid (i.e. 75% emperor goose 25% GWFG).

Technical information

Model
Canon EOS 7D Mark II
Lens
EF600mm f/4L IS II USM +1.4x III
ISO
400
Focal length
840 mm
Flash
Flash did not fire
f-stop
f/9.0
Shutter speed
1/1250 sec
Dimensions
1615 pixels x 1077 pixels
Original file size
628.08 KB