156891 Greenshank - Tringa nebularia L 30-31cm. An elegant and long-legged wader. Beautifully patterned but can look very white at a distance. Has yellowish green legs and long, slightly upturned, grey-based bill. Sexes are similar. Adult in summer has grey-brown upperparts with black centres to many back feathers. Head, neck and breast are streaked but underparts are white. In winter upperparts are pale grey above and underparts are white. Juvenile recalls winter adult but upperparts are darker and browner. Voice Utters a distinctive tchu-tchu-tchu call. Status Scarce breeding species, restricted to Scottish blanket bogs. Fairly common passage migrant, mainly to coasts, and local in winter.