Grey-tailed Tattler
Tringa brevipes
The grey-tailed tattler is closely related to its North American counterpart, the wandering tattler (T. incana) and is difficult to distinguish from that species. Both tattlers are unique among the species of Tringa for having unpatterned, greyish wings and back, and a scaly breast pattern extending more or less onto the belly in breeding plumage, in which both also have a rather prominent supercilium. These birds resemble common redshanks in shape and size. The upper parts, underwings, face and neck are grey, and the belly is white.
ID text from Wikipedia, CC BY-SA 4.0
Spotted Redshank
Tringa erythropus
This is a large wader (shorebird), measuring 29–31 cm (11–12 in) long, with a wingspan of 61–67 cm (24–26 in) and a weight ranging from 121 to 205 g (4.3 to 7.2 oz). It is black in breeding plumage, and very pale in winter. It has a red legs and bill, and shows a white oval on the back in flight. Juveniles are grey-brown finely speckled white above, and have pale, finely barred underparts. Adults moult completely between July and October. In spring, the body plumage is moulted between March and May. Juveniles have a partial moult between August and February.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Grey-tailed Tattler and Spotted Redshank.