The Common Ringed Plover, Borrelho-grande-de-coleira in Portuguese, is one of the most common waders we see in the salt pans and coastal marshes. Whilst seen year round in Portugal, their numbers increase significantly in the winter months due to both migrating and wintering ones. This is either a juvenile or an adult in winter plumage as the black collar is incomplete. Distinguished from other plovers by the yellow ring round its eyes.