(Numenius borealis)
The northern curlew ( Eskimo curlew Forster 1772 ) is a very rare bird of the family of Scolopacidae.Boreal curles are small,about 30 centimeters long.Adults have long,dark gray legs,the beak is long and slightly curved downwards.The upper parts are mottled brown,the belly and the lower parts of the plumage are light brown.In flight the wings show a coating of earth-colored feathers from Siena.They are similar in appearance to the numerous hudsonicus,the American subspecies of the small curlew,but smaller in size.In fact,the only sure way to distinguish the northern curlew is the analysis of the lower part of the remaned remiges.His singing is poorly documented,but includes clear and whistled sounds.the northern curlew forms a pair of parallel species,ecologically equivalent,with the Numenius minutus number,but with respect to its Asian relative it is slightly larger,longer,with shorter legs and the tone of warmer plumage.