Buff-breasted sandpiper – Calidris subruficollis
The Buff-breasted sandpiper 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. T. subruficollis breeds in the open arctic tundra of North America and is a very long-distance migrant, spending the non-breeding season mainly in South America, especially Argentina.

It migrates mainly through central North America, and is uncommon on the coasts. It occurs as a regular wanderer to western Europe, and is not classed as rare in Great Britain or Ireland, where small flocks have occurred. Only the pectoral sandpiper is a more common American shorebird visitor to Europe.

This species nests on the ground, laying four eggs. The male has a display which includes raising the wings to display the white undersides, which is also given on migration, sometimes when no other buff-breasted sandpipers are present. Outside the breeding season, this bird is normally found on short-grass habitats such as airfields or golf-courses, rather than near water.

These birds pick up food by sight, mainly eating insects and other invertebrates. The buff-breasted sandpipers are known to predate on Bombus polaris, a species of honeybee found within the Arctic Circle. They will either eat the bees or feed them to their young. They are often very tame.

Buff-breasted sandpipers are suspected to have hybridized with the white-rumped or Baird’s sandpiper.

It sounds like this
Recording by Bernabe Lopez-Lanus from Xeno canto