RUDDY DUCK
(Oxyura jamaicensis)
DARK BROWN BELLY SILVERY WHITE ♂ SUMMER PLUMAGE WHITE CHEEK CROWN GLOSSY BLACK BILL BLUE RICH CHESTNUT ♂ WINTER PLUMAGE CROWN BROWNISH-BLACK BILL DUSKY ASHY WHITE ♀ MOTTLED CHEEK WITH DARK STRIPE BILL NAIL DISTINCTLY SHARP-POINTED GRAYISH BROWN
HOODED MERGANSER
(Lophodytes cucullatus)
WHITE WING PATCH ♂ WHITE CREST OUTLINED WITH BLACK THIN, SPIKE-LIKE BLACK BILL TEETH NOT INCLINED BACKWARD AS IN OTHER MERGANSERS WHITE BREAST DOUBLE BLACK BANDS ♀ CREST, LIGHT BROWN LIGHT THROAT IN FLIGHT ALL MERGANSERS CARRY BILL, NECK AND BODY IN HORIZONTAL PLANE, GIVING THEM A CHARACTERISTIC LONG-DRAWN APPEARANCE.
COMMON MERGANSER
(Mergus merganser)
BLACK AND WHITE PATTERN WHITE WING PATCH ♂ METALLIC GREENISH-BLACK NOT CRESTED RED BILL NOSTRIL POSITIONED NEAR CENTER OF BILL ♀ DISTINCT CREST WHITE THROAT RED BILL TEETH INCLINED BACKWARDS GRAY BACK