Tristan da Cunha.
Nominate race and fraseri formerly considered conspecific with N. questi of Nightingale I, but genetic evidence suggests independent evolution on each island. Races of present species breed assortatively in coastal habitats, where large-billed dunnei and small-billed, drab nominate race behave as distinct species (distinct songs, and territorial behaviour focused primarily on members of own race); in contrast, all three races interbreed in ecotone between Blechnum heath and Phylica woodland on the island’s plateau. Three subspecies recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!