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 Red-throated Diver Gavia stellata L 57. Breeds in N Europe and Scotland on pools or open water, bogs and tundra. Often flies long distances to larger lakes or the sea to fish. Winters mainly along coasts. When swimming often holds its headand bill (slender and upturned) pointing markedly upwards. In summer easily recognised by reddish-brown throat. In flight very like Black-throated but can often be told by feet projecting less, greater tendency towards hunched back and sagging neck, quicker wingbeats, higher upstroke and more backwards-angled wings. Winter plumage paler than in Black-throated and with more restricted grey on hindneck, and eye usually clearly white-framed; back is sprinkled with small white spots; side of body completely dark above water line. Male has continuously repeated, loud display call, 'oo rr00-U, oo rr00-U, oo rr00-U . . . .', accompanied by female's louder and shriller'AArroo-AArroo-AArroo-. . .'.Also has drawn-out wailing 'eeaaooh'. Most often heard call is rapid goose like cackle in flight, 'gak-gak-gak-gak- . . .'. RWP
 An
excellent pocket reference book for recognising
birds is the Hamlyn Guide to Birds of Britain
and Europe, which is a comprehensive reference
guide to Britain and mainland Europe's plethora
of ornithological life.
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