Haematopus chathamensis
The Chatham Islands Oystercatcher, Haematopus chathamensis, is a distinctive and critically endangered shorebird endemic to New Zealand's remote Chatham Islands archipelago. This medium-sized oystercatcher measures approximately 48 cm in length with an impressive wingspan of 80-86 cm, characterized by its striking pied plumage: glossy black upperparts, head, and breast, contrasting sharply with a pure white belly. Its most notable field marks are its bright orange-red bill, which can be up to...
Exclusively found on coastal environments, the Chatham Islands Oystercatcher inhabits sandy beaches, rocky shores, intertidal mudflats, and estuaries, primarily at sea level.
The primary diet consists of marine invertebrates, including bivalve mollusks (like pipi and cockles), gastropods (limpets), crustaceans, and polychaete worms, which they acquire by probing, hammering, and prying on intertidal flats and rocky reefs.
Chatham Islands Oystercatchers are largely diurnal, intensely active during low tides when foraging opportunities are abundant, often roosting in small groups or pairs above the high tide line during high tide or at night. Their foraging strategies involve probing their long, sturdy bills into sa...
The Chatham Islands Oystercatcher is entirely non-migratory and resident exclusively within the Chatham Islands archipelago, located approximately 800 kilometers east of mainland New Zealand. Its distribution spans several islands within this remote group, including the main Chatham Island, Pitt ...
Endangered
- The Chatham Islands Oystercatcher is one of the world's rarest oystercatcher species, with a population of only around 350-400 mature individuals. - It is entirely endemic to the Chatham Islands archipelago, meaning it is found nowhere else on Earth. - This species is a remarkable conservation ...