Birds diurnal

Curlew Sandpiper

Calidris ferruginea

A globetrotting marvel of the marshes, the Curlew Sandpiper transforms from a subtle grey winter visitor into a stunning brick-red icon of the Arctic summer.

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Quick Identification

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Size

Length: 18-23 cm (7.1-9.1 in); Wingspan: 38-41 cm (15-16 in); Weight: 44-117 g (1.5-4.1 oz)

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Colors

Non-breeding: Pale grey-brown upperparts and white underparts. Breeding: Deep brick-red head, neck, and breast. Both have black bills and black legs.

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Key Features

Distinctly down-curved, black bill resembling a curlew
Bright white rump visible during flight
Longer legs and more elegant neck than similar sandpipers
Deep ferruginous (rust-red) color in summer adults

When You’ll See Them

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Activity pattern diurnal

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Peak hours Variable; most active during the falling or rising tide

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Season August-May (in wintering grounds)

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Diet Primarily feeds on polychaete worms, small mollusks, and crustaceans in coastal areas; consumes insects and larvae during the Arctic breeding season.

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Habitat Tidal mudflats, estuaries, saltpans, and coastal lagoons; occasionally found at inland freshwater marshes during migration.

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Behavior

The Curlew Sandpiper is an extraordinary long-distance traveler, flying thousands of miles from the Siberian tundra to spend the winter on the coastal mudflats of Africa, Asia, and Australia. They are highly social birds, usually found in tight-knit flocks that move in unison. When feeding, they exhibit a characteristic 'sewing machine' motion, rapidly probing the soft mud with their specialized curved bills to find hidden prey.

Because they live by the rhythm of the ocean, their behavior is governed more by the tides than by the sun. As the tide rises, they are pushed closer to the shore, often huddling together in large communal roosts to wait for the water to recede. While they are generally peaceful with other waders, they maintain a cautious distance from humans, though they can be surprisingly approachable for those who sit still and let the tide bring the birds toward them.

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Camera Tips

To capture the best footage of Curlew Sandpipers, your camera should be positioned as low to the ground as possible. A ground-level spike or a low-profile tripod set just above the high-tide mark is ideal. This 'eye-level' perspective provides a much more intimate view of the bird's intricate feather patterns and curved bill than a camera looking down from a height. If you have a backyard that borders a marsh or estuary, look for areas where the mud stays damp even at low tide, as these are prime foraging spots.

The secret to successful wader photography is understanding the tide cycle. Set your camera's motion trigger to be most sensitive during the two hours before and after high tide. As the rising water covers the outer mudflats, the Curlew Sandpipers will be forced closer to your camera's position. Conversely, on a falling tide, they will follow the water line out, so position your camera facing the receding water to catch them as they begin their foraging run.

Salt and sand are the primary enemies of your gear in these environments. Always use a high-quality weather-sealed housing for your AI camera and consider placing a protective clear filter over the lens that can be easily cleaned of salt spray. Avoid using bright or reflective housings; a camouflaged or dull-colored case will prevent the birds from being spooked when they come within a few feet of the lens.

Since Curlew Sandpipers often move in dense groups, use a camera setting that prioritizes a fast shutter speed to avoid motion blur. If your AI camera allows for 'zone' triggers, focus the activation zone on the specific patch of mud where the tide is expected to push the birds. While you cannot use traditional birdseed to attract them, maintaining a healthy, chemical-free shoreline will ensure the natural invertebrates they crave remain abundant, keeping them coming back to your field of view.

Similar Species

Species that look similar or are commonly confused with Curlew Sandpiper.

Dunlin

Smaller with a less curved bill and a dark stripe through the center of the white rump.

Broad-billed Sandpiper

Smaller with a 'kinked' bill tip and a distinct double eyebrow (supercilium) marking.

Stilt Sandpiper

Has significantly longer, greenish legs and a straighter bill than the Curlew Sandpiper.

Frequently Asked Questions

The Curlew Sandpiper is most active according to the tides rather than the time of day. They feed most intensely when the tide is either rising or falling, as this is when the mudflats and their invertebrate prey are most accessible.

You can only attract Curlew Sandpiper if your property borders a coastal mudflat, estuary, or saltpan. They are not attracted to traditional bird feeders; instead, they require healthy, pesticide-free tidal mud rich in worms and small crustaceans.

Their diet consists of small invertebrates including polychaete worms, mollusks, and crustaceans. During their brief breeding season in the Arctic, they switch to eating insects and their larvae found in the tundra bogs.

They are only common in suburban areas that are situated directly on the coast or near large estuaries. They are rarely seen in inland residential backyards unless there is a nearby wetland or during a heavy migration storm.

The easiest way to tell them apart is by looking at the bill and the rump. The Curlew Sandpiper has a more distinctly down-curved bill and a bright white rump that is clearly visible when it flies, whereas the Dunlin has a darker line running down the center of its rump.

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