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Every winter thousands of Whooper Swans from Iceland and Bewick’s Swans from Arctic Russia migrate into UK and Ireland to spend the winter here.
A white heron in the UK is likely to be a Little or Great White Egret, but occasionally Cattle Egrets turn up.
A black, reptilian-looking bird swims by low to the water - but is it a Cormorant or a Shag?
A stocky brown bird rockets up from just in front of your feet, but is it a Common Snipe, or its rarer relative Jack Snipe?
On paper Lesser and Great Black-backed Gulls are straightforward to separate but, in reality, many of us struggle.
Harriers are stunning, lithe and elegant birds of prey. Two species of grey harrier are regularly found in the UK, Hen and Montagu's.
Two species regularly found in Britain and Ireland - their ranges and habitats overlap, so how can we tell them apart?
A sudden view of an elegant falcon in summer, but is it a Hobby or Kestrel?