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
Buff-breasted Sandpiper
Calidris subruficollis
This species is brown above and has a buff face and underparts in all plumages. It has a short bill and yellow legs. Males are larger than females. Juveniles resemble the adults but may be paler on the rear underparts.
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: Broad-billed Sandpiper and Buff-breasted Sandpiper.