Black Turnstone

Overview

The Black Turnstone is a Pacific coast specialist, breeding only along a narrow strip of Alaskan coastal tundra and wintering exclusively on rocky Pacific shorelines from southern Alaska to Baja California. Unlike its more colorful and widespread relative the Ruddy Turnstone, it lacks any rufous tones, appearing uniformly dark instead.

Feathers are found almost exclusively along rocky Pacific coastlines, where wintering flocks forage among rocks, pilings, and jetties.

Feather Identification

• Overall tone: sooty blackish-brown across the head, back, and breast, with no rufous or chestnut tones at any season, unlike Ruddy Turnstone.
• Underparts: crisp white belly contrasts sharply with the dark breast and upperparts.
• Wing feathers: bold white patches and bars visible in flight, similarly contrasty to Ruddy Turnstone but set against an entirely dark, non-rufous body.
• Breeding vs nonbreeding: breeding adults show a subtle white speckling on the face and breast not present in duller nonbreeding plumage, but the overall dark tone remains consistent year-round.
• Versus Ruddy Turnstone: the complete absence of rufous or chestnut coloring, replaced by uniform sooty black-brown, is the clearest distinction from Ruddy Turnstone.

Plumage Notes

Breeding adults show fine white speckling on the face and upper breast against an otherwise sooty black-brown body, with a crisp white belly; sexes look alike. Nonbreeding adults lose the white speckling, appearing more uniformly dark above and on the breast, while retaining the sharp white belly contrast.

Juveniles resemble nonbreeding adults, with subtly paler fringes on the upperpart feathers when fresh. Molt into nonbreeding plumage occurs mostly after the breeding season, with the subtle facial speckling reappearing before spring migration.

Habitat & Range

Black Turnstones breed only along a narrow band of coastal tundra in western and southern Alaska. Outside the breeding season they are found almost exclusively on rocky shorelines, jetties, and rocky islets along the Pacific coast of North America, from southern Alaska south to Baja California, rarely straying far from rocky substrate.

Behavior & Field Notes

Like its relative the Ruddy Turnstone, this species forages by flipping stones, shells, and seaweed to expose hidden invertebrates, and is often seen clambering actively over wet rocks and pilings. It forms tight flocks that fly low over the water between roosting rocks.

Nests are shallow scrapes on coastal tundra, often near the sea. The flight call is a fast, chattering rattle similar to Ruddy Turnstone's. Because of its narrow, rocky-coast-only winter range, Black Turnstone feathers are a strong indicator of a Pacific coast location.