CROWN FOREHEAD OCCIPUT CHEEK NAPE SIDE NECK BACK SCAPULARS RUMP CHIN THROAT FORENECK TERTIALS UPPER TAIL COVERTS BREAST TAIL UNDER TAIL COVERTS BELLY SIDE
LESSER COVERTS SPURIOUS WING GREATER COVERTS PRIMARIES SECONDARIES TERTIALS
TIBIA SCUTELLATE TARSUS HEEL HIND TOE TOE WEB
NAIL LAMELLAE LOWER MANDIBLE UPPER MANDIBLE NOSTRIL NAIL MALE FEMALE
WHISTLING SWAN
(Cygnus columbianus)
ENTIRE PLUMAGE WHITE IMMATURE BIRDS HAVE GRAY-WHITE PLUMAGE WITH DULL PINKISH BILL YELLOW SPOT BLACK BILL SEXES ARE SIMILAR CARRIES NECK HELD ERECT HEAD OF MUTE SWAN SHOWING BLACK KNOB AND ORANGE BILL
CANADA GOOSE
(Branta canadensis)
WHITE RUMP BROWNISH GRAY BODY AND WINGS BLACK BILL WHITE PATCH BLACK NECK ALL GEESE HAVE RETICULATE TARSUS SEXES ARE SIMILAR