All species › Waders, gulls and terns › Sandpipers and snipes › Buff-breasted sandpiper
Buff-breasted sandpiper | Calidris subruficollis
Blonde ruiter | Correlimos canelo
A calidrid that has given up on mud. Buff-breasted sandpiper walks short grass on golf courses, airfields and dune pasture, evenly buff from crown to undertail, with a large dark eye set in a blank little face. Once you have watched one walk, the calm, plover-like gait is instantly recognisable again. In Britain and Ireland it is the most expected of the Nearctic grassland waders, and for many observers the September bird that finally makes the pattern click; elsewhere in the map area, as in Spain, it is almost always a September bird along the Atlantic coast.
Voice
Silent for practical purposes. A flushed bird may give a short low tuk or a subdued rattling pr-r-reet that barely carries across a field. On the tundra lek males deliver a soft clucking murmur while raising one wing to show the white underside, but nothing of that behaviour is on offer in Europe. Do not expect to hear this species; find it with your eyes.
No freely licensed recording is available for this species yet.
Identification
A small, neatly built wader with a rounded head, a short straight black bill and ochre-yellow legs. The upperparts are scaled, black feather centres inside broad warm fringes. Head, neck, breast and belly are uniformly buff, with only fine dark spotting along the breast sides and no white belly cutting in below the breast. The large dark eye, ringed with fine pale feathering, stands out in that plain face. In flight there is no wingbar and the primaries are dark, but the bird opens a gleaming white underwing marked with a dark crescent along the tips of the primary coverts, which is the single most reliable feature at any range.
Confusion species
Buff-breasted sandpiper closely resembles a juvenile ruff: both are gold-scaled above and buff below. Ruff is considerably larger, longer in neck and leg, with a full head, a steep forehead and a small eye lost in the head streaking, and a longer bill that droops slightly at the tip. On Buff-breasted the large dark eye with its crisp pale ring sits in an unmarked buff face, giving the head an almost dove-like look. Leg colour helps: ochre-yellow on Buff-breasted, usually grey-green to olive on juvenile Ruff. In flight the question is settled in a second. Ruff shows a narrow white wingbar and the two white ovals flanking the dark rump; Buff-breasted shows a plain upperwing with no bar at all and flashes a silver-white underwing with that dark crescent across the primary coverts. Upland sandpiper shares the big dark eye in a plain face, but is far larger, longer necked, boldly chevroned below and long-tailed.
Habitat
Close-grazed or closely mown grassland: golf courses, airfields, mown verges, machair, dune grassland, dry saltmarsh edges and occasionally stubble. It does not seek water and is an accident on a tidal flat. On the breeding grounds it takes dry raised ridges within otherwise damp grassy tundra, and it favours the same kind of very short sward on migration in the Americas, including turf farms.
Where the bird is most at home, classified with EUNIS — the European standard for habitats.
Range and movements
Breeds on the arctic tundra of northern Alaska and northern Canada, with a foothold on Wrangel Island, and winters on the pampas of Argentina, Uruguay and Paraguay. On that long track birds stray every year, and the Atlantic drift delivers them to western Europe each autumn. In the British Isles it is annual — the Isles of Scilly, the Irish south-west coast and the Northern Isles take the largest share — and numbers rise sharply after a fast-moving depression crosses from Newfoundland in the first half of September. Along the North Sea it is now regular, chiefly on the Wadden coast and in the Delta. In Iberia and Macaronesia it is rarer: Galicia first, then the Canaries, occasionally the Balearics. Almost everything falls in autumn, with September as the core month; spring birds in April and May are scarce.
How and when to look
In the first half of September, within a few days of a westerly airflow, work short grass and cover the edges rather than the middle: saltmarsh margins and airstrips on the Wadden islands, grassy embankments in the Delta, machair and the seaward strip of golf courses on the Irish and Scottish coasts, the coastal pastures of Galicia and Asturias. Scan flocks of Golden Plover and Ruff for a smaller bird walking a little apart and standing slightly more upright, and let the plain buff underparts with no white belly do the work. If the bird flies, get on the underwing.
Conservation status
In 2024 the IUCN moved the species from Near Threatened to Vulnerable. The world population is a few tens of thousands of birds and falling. Nineteenth-century market hunting all but finished it off, and the pressure now comes from the conversion of the South American pampas to soy and arable, from the loss of short-grass stopovers along the Great Plains, and from oil and gas development on the arctic breeding grounds. Because the birds concentrate on a handful of staging sites, a single bad season on the Texas coast or in the Paraguayan grasslands carries a long way.
Scientific name
Calidris subruficollis | (Vieillot, 1819)
Vieillot described the species in 1819 as Tringa subruficollis; because it was later moved to another genus, the author and year stand in brackets. The genus Calidris was introduced in 1804 by Merrem. Calidris goes back to Ancient Greek kalidris or skalidris, a name Aristotle used for an unidentified grey waterside bird. subruficollis joins Latin subrufus 'reddish' — from sub 'somewhat' and rufus 'rufous' — to collum 'neck'. The specimen the first description was based on came from Paraguay.