There isn’t any doubt. Her mate stayed close by on guard duty while she ate. We watched her grazing with her head submerged off and on for maybe fifteen minutes and then drove off to the end of the paved road where we cross the river and turn around. On the way back, the two Canada geese were still there, and she was still eating! Eventually she stopped and stood on a rock, when I got this highly-cropped telephoto shot. All this time the big guy was craning his neck and swiveling his head, never got to eat or rest. I wonder how that all works out.
But damn, just look at her. Could that be anything but a female? I mean, seriously. That is one beautiful goose.