Pectoral Sandpiper

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Pectoral Sandpiper in the UK

A scarce but annual passage migrant, and the transatlantic wader you are most likely to find in Britain. An average of 141 birds a year were logged between 2010 and 2018. Most arrive in autumn, in two pulses: adults from late July, then a larger wave of juveniles in September and October. Spring birds are much rarer. It breeds on Arctic tundra in both North America and Siberia, so British birds may come from either direction. Males have occasionally been seen displaying in northern Scotland in summer. It is too regular to be judged by the national rarities committee.

Where and when to see a Pectoral Sandpiper

Check freshwater margins, not open mudflats: reserve scrapes, flooded field corners, reservoir edges and grazing marsh with short wet grass. Records come from across Britain, with the south-west, the Isles of Scilly, the Outer Hebrides and the big east coast wetland reserves doing best. September is the peak month. Westerly gales after a fast Atlantic depression often bring a batch at once. Birds can stay for a week or more and are often tame. Most are found by someone working through a flock of Dunlin or Ruff.

Habitat, diet and field notes

Habitat: Wet meadows (autumn passage).
Diet: Invertebrates.
Field note: Sharply bordered breast band.

How to identify a Pectoral Sandpiper

Sits between a Dunlin and a Ruff in size, with a long neck, small head and upright stance when alert. The key feature is the breast: close dark streaks that stop in a clean, straight line against a white belly, like a bib. Legs are dull yellow or greenish. The bill is slightly downcurved with a paler base. Juveniles, which make up most autumn birds, have a rufous cap, bright rusty and buff fringes above and two white lines down the mantle. In flight it shows only a faint wingbar and dark centre to the rump.

Call and song

The flight call is a low, dry, rolling 'krrrt' or 'prrrp', often given as the bird flushes. It is deeper and reedier than a Dunlin's buzzy call, and once learned it picks birds out overhead. Heard something you cannot place? Bird Hear identifies UK birds from a 10 second recording, free in your browser.

Confusion species

• Ruff: A juvenile Ruff is bigger and longer-legged with a plain buff breast that fades into the belly, not a streaked bib with a sharp lower edge.
• Dunlin: Dunlin is smaller with black legs and a longer drooping bill, and its breast streaking never ends in a neat line.
• Sharp-tailed Sandpiper: Sharp-tailed is far rarer and lacks the sharp breast cut-off, with a brighter rufous cap and a bold white eyebrow that flares behind the eye.

Month by month

A passage migrant. Look for it on spring and autumn movements rather than through the summer. Numbers peak in April. See the April birding guide for what else is about. More on the season in Bird migration in Britain.

Taller bars mean more birds about. Grey means it is usually absent.

Conservation status and Birdedex points

In the Birdedex the Pectoral Sandpiper is a Rare tier bird, worth +8 points when you log one. It is not on the Red or Amber lists in Birds of Conservation Concern 5.

Where to see it

Reserves where the Pectoral Sandpiper is on the list:

• Isles of Scilly

Recent UK sightings

Similar birds

• Curlew SandpiperRare · Estuaries (autumn passage)
• Little StintRare · Estuaries (autumn passage)
• White-rumped SandpiperRare · Wet mud (autumn passage)
• Buff-breasted SandpiperRare · Short grass (autumn passage)
• Temminck's StintRare · Pools (rare passage)
• Broad-billed SandpiperEpic · Pools (very rare passage)

Pectoral Sandpiper: quick answers

Is the Pectoral Sandpiper rare in the UK?

It is scarce, not a true rarity. Over a hundred are seen in most years, and in September 2003 an influx brought about 150 to Britain. An inland patch watcher might still wait several years for one.

When is the best time to see Pectoral Sandpiper?

September, with a good run from late August to mid October. Go a day or two after strong westerlies. May also produces a few birds, usually adults on their own.

What does a Pectoral Sandpiper eat?

Insects and their larvae, spiders, small crustaceans and some seeds. It picks and probes in wet grass and soft mud at the water's edge, often walking steadily with its head down like a small Ruff.

Kit that helps

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