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Red-throated Diver Gavia stellata L 55-65cm. Swims low in water, head and dagger-like bill tilted upwards. Dives frequently. Sexes are similar. Adult in summer has blue-grey on face and sides of neck, red throat and black-and-white lines on back and lower sides of neck. Upperparts are otherwise brownish grey and underparts are whitish. In winter, grey upperparts are spangled with small white spots; underparts are white. Juvenile is similar to winter adult but grubby-looking. Voice Mostly silent. Status Scarce breeding species; nests beside freshwater pools. Outside breeding season, found in shallow coastal seas; locally common in winter.