Despite its recent re-classification as a Calidrid a number of things make Ruffs unique. Strongly
sexually dimorphic, including size, their lekking behaviour is not found among other waders, much less the
large variety of male breeding plumages. The colour of the ruff is apparently an indication of the birds status
at the lek. Breeding from the UK to Eastern Siberia, the bird is very familiar to UK birders but succesful
breeding is rare.
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