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Curlew Sandpiper Calidris ferruginea L 19-21cm. Small, elegant wader. Similar to Dunlin but separable by noting long and obviously downcurved bill and white rump. Sexes are hard to separate. Adult in summer has spangled reddish brown, black and white back and (briefly) brick red on face, neck and underparts (appears mottled in moulting migrants). Male is brighter than female. Winter adult (seldom seen here) has greyish upperparts and white underparts. Juvenile (commonest plumage encountered here) has scaly-looking back, white belly and buffish breast; note pale supercilium. Voice Utters a soft prrrp call. Status Breeds in high Arctic and seen here as scarce passage migrant, usually on estuaries and coastal pools, often with Dunlins.