Diuca diuca
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
The diuca finch (Diuca diuca) is a species of bird in the tanager family Thraupidae. It is the only member of the genus Diuca. It is found in Argentina, Bolivia, Brazil, Chile, and Uruguay. Its natural habitats are subtropical or tropical dry shrubland, subtropical or tropical high-altitude shrubland, and heavily degraded former forest.
The diuca finch was formally described in 1782 by the Chilean naturalist Juan Ignacio Molina under the binomial name Fringilla diuca. The specific epithet is from the Araucano names Diuca or Siuca for this species. With the transfer of the glacier finch (formerly white-winged diuca finch) to Idiopsar or Chionodacryon, the diuca finch is now the only member of the genus Diuca, which was introduced in 1850 by the German naturalist Ludwig Reichenbach.
Four subspecies are recognised: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 2 | Península Valdés | 🇦🇷 Argentina | |
| 3 | Torres del Paine National Park | 🇨🇱 Chile |
Rare
Under 5% of wildlife watchers report a Common Diuca-Finch sighting in Mendoza on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 50th most-seen of the 69 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March
In that month about 30% of wildlife watchers report a Common Diuca-Finch in Mendoza on a given day, against under 5% in April and June–February, the lowest months. That is one of Mendoza's wettest months, with about 35 mm of rain against 10 mm in June.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Common Diuca-Finch sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 cities where we can rate Common Diuca-Finch sightings, Mendoza ranks 2nd at under 5%. The best odds are in Santiago (Chile, about 30%).
Same family: Thraupidae
The closest relatives of the Common Diuca-Finch that you can see in Mendoza (family Thraupidae, Tanagers and Allies) are Saffron Finch (about 70%), Blue-and-yellow Tanager (about 20%) and Brazilian Cardinal (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Diuca-Finch is recorded against all the birds logged in Mendoza (17 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.
