Swans, ducks and geese (Anatidae)
Where to see them
The UK breeding population is concentrated in the north-west of Scotland, England and Wales, and in parts of N Ireland. RSPB reserves with red-breasted mergansers in winter include: Morecambe Bay, Lancs; Langstone Harbour, Hants; Exe Estuary, Devon; Arne, Dorset; Snettisham and Titchwell Marsh, Norfolk; Lough Foyle, Co Londonderry; Belfast Lough, Co Antrim; Culbin Sands, Highland; Udale Bay, Highland.
When to see them
UK birds start to flock on the coast from July, reaching a peak in December. Birds from N Europe also arrive in late autumn. They return to the breeding areas in March.
What they eat
|Europe||UK breeding*||UK wintering*||UK passage*|
|-||2,370 pairs||8,400 birds||-|