Dunlin look-alikes

Key differences

Sanderlings are paler overall, especially in non-breeding plumage, appearing almost pure white below. They lack the Dunlin's downcurved bill and black belly patch. Sanderlings also lack a hind toe, which Dunlins possess.

Key differences

Curlew Sandpipers have a more strongly decurved bill and a more rufous breeding plumage, lacking the distinct black belly patch of the Dunlin. In non-breeding plumage, they are very similar but the Curlew Sandpiper often shows a more prominent white supercilium and rump.

Key differences

Baird's Sandpiper is typically browner overall, with a scaly appearance on the back and breast, and lacks the black belly patch. Its bill is straighter and shorter than the Dunlin's.

Key differences

Western Sandpipers are smaller, with a finer, slightly decurved bill. In breeding plumage, they have rufous scapulars and ear coverts, but lack the prominent black belly patch. Non-breeding Westerns are very similar to Dunlins but are smaller and have a more delicate bill.