Geospizopsis plebejus
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The ash-breasted sierra finch (Geospizopsis plebejus) is a species of bird in the family Thraupidae. It is found in Argentina, Bolivia, Chile, Ecuador, and Peru. Its natural habitats are subtropical or tropical dry shrubland, subtropical or tropical high-altitude shrubland, and subtropical or tropical high-altitude grassland.
The ash-breasted sierra finch was formally described by the Swiss naturalist Johann Jakob von Tschudi in 1844 as Phrygilus plebejus. Tschudi did not give a type locality in his description, but the Austrian ornithologist Carl Hellmayr contended in 1938 that the type specimens were probably collected from the Junín highlands of Peru. The subspecies ocularis was described by P. L. Sclater in 1859 based on specimens collected from Cuenca, Ecuador. Sclater initially described ocularis as a distinct species, but it was subsequently lumped as a subspecies of plebejus. naroskyi was described in 1983 by Manuel Nores and Dario Yzurieta based on an adult male collected from Pampa de Achala in the Sierras de Córdoba of Argentina.
The generic name Geospizopsis is derived from the name of the genus Geospiza, meaning 'ground finch' in Ancient Greek, and the Greek... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lauca National Park | 🇨🇱 Chile |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Ash-breasted Sierra-Finch sighting in Arequipa on a given day, based on 78 verified sightings from GBIF citizen-science data. It is the 35th most-seen of the 61 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report an Ash-breasted Sierra-Finch in Arequipa on a given day, against under 5% in July to April, the lowest months. Those are among Arequipa's driest months, with almost no rain against 45 mm in February.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Ash-breasted Sierra-Finch sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 cities where we can rate Ash-breasted Sierra-Finch sightings, Arequipa ranks 3rd at under 5%. The best odds are in La Paz (Bolivia, about 10%) and Quito (Ecuador, under 5%).
GBIF citizen-science records
It is estimated from how often the Ash-breasted Sierra-Finch is recorded against all the birds logged in Arequipa (78 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
