I was fortunate to be able to see a line of Greater White-fronted Geese with the larger Tule Subspecies in front and the smaller Tundra in the rear.
It looks like the Tule Goose is fitted with a telemetry unit.
with a Northern Pintail behind it
with White-faced Ibis
I don't if these Mallards are domesticated or the hybrid.
Colusa National Wildlife Refuge, Colusa CA.
Photo from observation platform at auto tour loop . Snow Goose or Ross`s Goose (2) in background .
wintered in this location for two years