Anas penelope, Wigeon, aerial, bird, birds, close, close-up, closeup, drake, duck, ducks, estuaries, estuary, flight, flying, fowl, grassland, grasslands, horizontal, landscape, male, migrant, migrants, migrate, migrates, migrating, migration, migratory, up, visitor, water, waterbird, waterbirds, waterfowl, wet, wild, wildfowl, winter, Paul Sterry