Broad-billed Sandpiper
Calidris falcinellus
Broad-billed sandpipers are small waders, 16–18 cm long, slightly smaller than the dunlin, but larger than the little stint; it has a longer, straighter bill with the tip distinctly kinked down, and shorter legs than dunlin. The breeding adult has dark brown upperparts patterned with narrow, pale feather fringes, and white underparts with blackish markings on the breast. It has a pale crown stripe, and a distinctive double (split) supercilium.
ID text from Wikipedia, CC BY-SA 4.0

Terek Sandpiper
Xenus cinereus
Slightly larger than the common sandpiper at 22–25 cm (8.7–9.8 in) length, its long upcurved bill – somewhat reminiscent of an avocet's, but not as strongly curved – makes it very distinctive. As the scientific specific name implies, this wader has a grey back, face and breast in all plumages; a white supercilium may appear more or less distinct. The belly is whitish and the feet yellow; the bill has a yellowish base, with the rest being black. The call is a high whistle.
ID text from Wikipedia, CC BY-SA 4.0

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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Broad-billed Sandpiper and Terek Sandpiper.