Nesospiza

There are three endemic subspecies: Tristan thrush Nesochicla eremita (850 pairs), thick-billed bunting Nesospiza wilkinsi (VU, 2,000 pairs) and Tristan bunting Nesospiza acunhae (VU, 10,000 pairs).

Gough Island Wildlife Reserve, United Kingdom 2008

For example, Phylica arborea trees, which provide an important habitat and food source of for the endemic grosbeak bunting (Nesospiza wilkinsi dunnei), are recovering on cliffs above Edinburgh since a ban on cutting was passed.

Tristan Da Cunha-Gough Islands shrub and grasslands 2007

Tristan is quite remarkable in supporting three endemic genera: Atlantisia, Nesocichla, and Nesospiza.

Tristan Da Cunha-Gough Islands shrub and grasslands 2007

Nesospiza buntings have speciated at the Tristan da Cunha archipelago, resulting in the Tristan bunting (Nesospiza acunhae) and Wilkins 'bunting (N. wilkinsi), which are significantly different in size and co-occur without interbreeding on Nightingale Island.

Tristan Da Cunha-Gough Islands shrub and grasslands 2007

Color variation and hybridization among Nesospiza buntings on inaccessible island, Tristan da Cunha.

Tristan Da Cunha-Gough Islands shrub and grasslands 2007