Sicalis luteola
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The grassland yellow finch (Sicalis luteola) is a small passerine bird. Despite its name, it is not a finch, but is a seedeater. These were formerly united with the buntings and American sparrows in the Emberizidae, but are now known to be tanagers.
It is a resident in tropical South America, from Colombia south and east to the Guianas and central Ecuador, Peru and Brazil. Birds which breed further south in Argentina and Uruguay migrate to Bolivia and southern Brazil, (the cerrado etc.), in the austral winter. There are also isolated populations in Central America and Mexico. It was discovered on Trinidad in 2004, presumably having colonised from nearby Venezuela. Also known from Barbados, certainly since 1960 if not earlier.
The grassland yellow finch, as its name implies, is found in fields and other open grassland. The female lays 3 brown-speckled pale blue-green eggs in a grassy cup nest in tall grass, and several pairs may breed close to each other in suitable areas.
The grassland yellow finch is about 12 cm long and weighs 13 g. The males have bright yellow underparts and rump, and olive yellow upperparts. The crown and nape have dark streaking, and there is yellow around the eye. Females have dark-streaked pale brown upperparts and dull yellow underparts. The call is a sharp te-tsip, and the male's song, given from a perch or in a display flight, is a series of chips, buzzes and trills.
Grassland yellow finches eat seeds and insects, and are usually seen in pairs or small groups. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | Vicente Pérez Rosales National Park | 🇨🇱 Chile | |
| 3 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 4 | Península Valdés | 🇦🇷 Argentina | |
| 5 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 6 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 7 | El Palmar National Park | 🇦🇷 Argentina | |
| 8 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 9 | Iguaçu National Park | 🇧🇷 Brazil | |
| 10 | Iguazú National Park | 🇦🇷 Argentina | |
| 11 | Los Nevados National Natural Park | 🇨🇴 Colombia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santiago | 🇨🇱 Chile | |
| 2 | Lima | 🇵🇪 Peru | |
| 3 | Rosario | 🇦🇷 Argentina | |
| 4 | Bogota | 🇨🇴 Colombia | |
| 5 | Buenos Aires | 🇦🇷 Argentina | |
| 6 | Cochabamba | 🇧🇴 Bolivia | |
| 7 | Mendoza | 🇦🇷 Argentina | |
| 8 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 9 | Montevideo | 🇺🇾 Uruguay | |
| 10 | Campinas | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Grassland Yellow-Finch sighting in Rosario on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 93rd most-seen of the 121 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
November
In that month about 20% of wildlife watchers report a Grassland Yellow-Finch in Rosario on a given day, against under 5% in March, September and December–January, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Grassland Yellow-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.
3rd of 16
Of the 16 cities where we can rate Grassland Yellow-Finch sightings, Rosario ranks 3rd at about 10%. The best odds are in Santiago (Chile, about 20%) and Lima (Peru, about 10%).
GBIF citizen-science records
It is estimated from how often the Grassland Yellow-Finch is recorded against all the birds logged in Rosario (19 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.
