Long-toed Stint
Calidris subminuta
The long-toed stint is a very small wader measuring just 13 to 16 cm (5.1 to 6.3 in) in length with a wingspan of 26.5 to 30.5 cm (10.4 to 12.0 in). It weighs about 25 g (0.9 oz). It has a small head and short, straight sharp-tipped beak. The neck is slender, the belly rounded and the long legs are set well back. The toes are long and slender, especially the middle one. The primary feathers extend as far as the tail. The crown is brown and there is a pale streak just above the eye. The upper parts are brown with the centres of the feathers darker brown.
ID text from Wikipedia, CC BY-SA 4.0
Rock Sandpiper
Calidris ptilocnemis
Adults have short yellow legs and a medium thin dark bill. The body is dark on top with a slight purplish gloss and mainly white underneath. The breast is smeared with grey and the rump is black. The nominate subspecies from the Pribilof Islands shows a bold black belly patch in breeding plumage; the other three subspecies more closely resemble purple sandpiper than they do the nominate subspecies.
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: Long-toed Stint and Rock Sandpiper.