The Green Sandpiper (Tringa ochropus) is a species of wading bird that breeds across sub-Arctic Europe and Asia. It is migratory and winters in southern Europe and Asia, and tropical Africa.
This bird has a dark green back, grayish head and breast and otherwise white underparts. The back is spotted heavily in breeding adults. Spotting is less apparent in young birds and less visible in the winter months. The legs and bill are dark green. In flight, it shows dark wings above and below, and a brilliant white rump. This bird has a characteristic three-note whistle in flight. It is similar to the closely related Solitary Sandpiper.
This species is non-gregarious, however it will sometimes congregate in small numbers around suitable feeding areas. It is common in fresh water mostly, and is sometimes found in areas too restricted for other wading birds, which tend to like clear, open views. The food of the Green Sandpiper is small invertebrates picked off the mud around pond edges.
The female lays 2 to 4 eggs in an old tree nest of other species of birds. The eggs take about three weeks to hatch. The Green Sandpiper is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.