patrols the rocky intertidal shores

Size
Length: 24-27 cm, Weight: 80-120 g
Lifespan
10-12 years
Diet
Carnivorous. Feeds on small crabs, molluscs, marine worms, and insects. Picks prey from rocks and crevices. Forages in intertidal zones, often on exposed reefs.
Habitat
Rocky shores, coral reefs, and mudflats with boulders. Prefers intertidal areas with exposed rock for feeding. Breeds in mountain forests of eastern Siberia.
Range
Breeds in eastern Siberia. Winters in Australia, New Zealand, and Pacific islands. In New Zealand, a regular summer visitor to rocky shores of North and South Islands.
Endemism
Migratory Native
Main Threats
Reclamation of tidal mudflats in the Yellow Sea, a critical migration stopover site. Climate change affecting Siberian breeding habitat. Coastal development in winter range.
Population
Global population estimated at 50,000-100,000 birds and declining. Classified as Near Threatened by IUCN due to habitat loss in the Yellow Sea. Regular summer visitor.
Conservation Status
data_deficient
Human Risk
harmless
Handling Note
migratory wader, do not approach or disturb on feeding grounds
Conservation Note
Migratory shorebird; data insufficient for full threat classification in New Zealand context.
Te Ao Māori
The grey-tailed tattler has no recognised Māori name. It is a regular but uncommon visitor rather than a resident species. It belongs to the wider family of migratory shorebirds that travel the great flyways of the Pacific. In Māori tradition, such birds were seen as travellers from distant lands. Their arrival marked the turning of the seasons. This seasonal cycle connected coastal communities to the broader rhythms of the ocean. The tattler remains a transient guest in these islands. Its presence signals the changing tides and the movement of life across vast distances. It is observed but not named.
The grey-tailed tattler prefers rocky shores to sandy beaches. It is a medium-sized wader, uniformly grey above and white below, with a pale eyebrow and a short, straight bill. It looks like a quieter version of the wandering tattler, which is almost identical. The differences are subtle. A slightly shorter bill. A slightly different call. The birds know the difference. Humans squint and argue. Identification requires patience. The reward is knowing you saw the right one. Feeding happens on rocks and in crevices. The bird targets small crabs, molluscs, and worms. It moves with a deliberate, teetering walk, bobbing its body as it goes. A tattler feeding is methodical. It does not rush. It picks prey from the intertidal zone, often on exposed reefs. The call is a sharp, whistled "tlee-tlee-tlee," often given in flight. It is distinctive. Once you learn it, you hear tattlers before you see them. The name comes from this habit. It tattles. It warns. A tattler on a rocky shore, calling in alarm, alerts every other bird in the area. The predators come anyway. The warning is ignored or ineffective. Survival depends on speed, not silence. In New Zealand, these birds are regular but uncommon visitors. They arrive in spring and leave in autumn. A few thousand birds each year scatter around the coast. They prefer rocky shores. The Coromandel Peninsula, the Marlborough Sounds, and the Fiordland coast host significant numbers. The migration route is long. Tattlers breed in the mountains of eastern Siberia, far from the sea. They nest on stony slopes, among boulders and low scrub. Then they fly south, crossing the Pacific. They spend the winter in Australia, New Zealand, and the islands of the South Pacific. The population is declining. The Yellow Sea mudflats, where they stop to refuel during migration, have been reclaimed for industry and agriculture. The birds arrive. The mud is gone. They keep trying anyway. Climate change affects Siberian breeding habitat. Coastal development in the winter range adds pressure. The global population is estimated at 50,000 to 100,000 birds. The International Union for Conservation of Nature classifies the species as Near Threatened. The status reflects the severity of the habitat loss. In New Zealand, the grey-tailed tattler is the more common of the two tattler species. The wandering tattler is rare. Birders celebrate when they find one. The grey-tailed tattler blends into the rocks. It is easy to overlook. That is the point. It carries on.