Breeds northeastern British Columbia to eastern Canada, and northeastern Montana to northern Arkansas and western North Carolina; winters southward to Texas and southeastern USA including Florida.
atlantica
melodia/atlantica (melodia/atlantica)
Breeds coastal New York (Long Island) to North Carolina; winters to northern Georgia.
maxima
sanaka/maxima (sanaka/maxima)
Aleutian Islands (Attu to Atka)
sanaka
sanaka/maxima (sanaka/maxima)
Aleutian Islands (Seguam to Unimak, Sanak to Amak)
insignis
rufina (rufina)
Kodiak Group (Sitkalidak I. to Barren Is.) and adj. Alaskan Pen.
kenaiensis
rufina (rufina)
Coastal s Alaska (Cook Inlet to Copper River)
caurina
rufina (rufina)
Breeds coastal southeastern Alaska (Yakutat Bay to Cross Sound); winters to northern California.
rufina
rufina (rufina)
Breeds outer islands of southeastern Alaska to central British Columbia; winters to western Washington.
morphna
rufina (rufina)
Breeds southwestern British Columbia to southwestern Oregon; winters to central California.
merrilli
montana/merrilli (montana/merrilli)
Breeds southeastern Alaska (Glacier Bay) and central British Columbia to southwestern Alberta and northwestern Montana; winters to central California and northern Mexico.
montana
montana/merrilli (montana/merrilli)
Breeds eastern Oregon and northeastern California to central Montana, western Colorado, northeastern Arizona, and northern New Mexico; winters to central California and northwestern Mexico.
cleonensis
heermanni (heermanni)
Extreme sw coastal Oregon to n Calif. (w Mendocino County)
gouldii
heermanni (heermanni)
Coastal central California (Mendocino Co. to n San Benito Co.)
maxillaris
heermanni (heermanni)
Brackish marshes of central California (Suisun Bay)
heermanni
heermanni (heermanni)
Central and southwestern California (including the Central Valley) and northwestern Baja California
graminea
heermanni (heermanni)
California Channel Islands (San Clemente, San Miguel, Santa Cruz, Santa Rosa, Anacapa) off of southern Calfornia and Los Coronados Islands, west of Baja California. Formerly also Santa Barbara Island (Channel Islands), but now extirpated
samuelsis
samuelsis (samuelis)
Salt marshes of c California (San Pablo and San Francisco bays)
pusillula
pusillula (pusillula)
Salt marshes of c California (south side of San Francisco Bay)
fallax
fallax (fallax)
Southeastern Nevada and southwestern Utah south to southeastern California, northeastern Baja California, and northeastern Sonora
rivularis
fallax (fallax)
S-central Baja California
goldmani
fallax (fallax)
Sierra Madre Occidental of w Mexico (El Salto area of Durango)
mexicana
mexicana (mexicana)
Wetlands of central Mexico (Hidalgo, Tlaxcala, Puebla, Distrito Federal and México)
villai
mexicana (mexicana)
C Mexico (upper Río Lerma), se Guanajuato and nw Michoacán
adusta
mexicana (mexicana)
Central and southwestern Mexico (Río Lerma River from Lago Yuriria to southern Guanajuato, Lago Pátzcuaro in Michoacán)
zacapu
mexicana (mexicana)
SW Mexico (Zacapu region of n Michoacán and Laguna Chapala)
