Critically Endangered
Niceforo's Wren
Thryophilus nicefori
Niceforo's Wren is a perching bird in the family Troglodytidae (order Passeriformes) — Thryophilus nicefori, recorded as Critically Endangered.
Appearance
Adult birds are dull olive-grey on the head and mantle, becoming slightly more rufescent on the back. A long white supercilium is bordered behind the eye by fine black lines. The face is marked by black and white streaks.
A medium-sized wren, averaging 14.5–15 cm (5.7–5.9 in) in length.
Published measurements include mass about 22.8.
Range and habitat
Niceforo's wren is endemic to the valley of the Chicamocha River, as well as the Sogamoso, Suaréz, and Fonce river basins. This wren is found in dry forest at altitudes between 1,132 and 1,840 m (3,710 and 6,040 ft), in areas with abundant vegetation cover, a dense understory and abundant leaf litter. Its presence was found to be significantly correlated with that of Tricanthera gigantea, Acacia farnesiana, Sapindus saponaria and Pithecellobium dulce.
This work led to the establishment in 2009 of the Niceforo's Wren Natural Bird Reserve in Zapatoca. Run by the Colombian NGO Fundación ProAves, the reserve comprises 1,400 ha (3,500 acres) of dry forest habitat, protecting a population of 21 individuals discovered in Santander Department in 2008.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Habits
Perching birds hold with three toes forward and one back. A named island starling or leafbird in this catalog is a wild population, not a cage type.
In crisis
It is threatened by habitat loss. Another population of the wren is protected within the Serranía de los Yariguíes National Nature Park.
Niceforo's Wren is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Niceforo's Wren, Wikidata item Q27075585. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
