Western Grebe (Aechmophorus occidentalis) [XC292675]
by Lance A. M. Benner from Quill Lakes, Road 640, SK, Canada (begging call, song)
Western Grebe (Aechmophorus occidentalis) [XC143567]
by Paul Marvin from Finney Lake, Calipatria, Imperial County, California, United States (begging call)
Subspecies
Formerly included Clark's Grebe (Aechmophorus clarkii), which until recently considered a colour morph.
The following 2 subspecies are recognised:
occidentalis (Lawrence, 1858) - South-western and south-central Canada, western and north-central USA. Winters Pacific coast south to Baja California.
ephemeralis Dickerman, 1986 - Central-western and south-central Mexico.