Pseudoleistes guirahuro
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The yellow-rumped marshbird (Pseudoleistes guirahuro) is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Argentina, Brazil, Paraguay, and Uruguay. The yellow-rumped marshbird was formally described in 1819 with the binomial Agelaius virescens. It now shares the genus Pseudoleistes with the brown-and-yellow marshbird (P. virescens).
The yellow-rumped marshbird is monotypic. Male yellow-rumped marshbirds average 25.5 cm (10 in) long. Males weigh an average of 91.2 g (3.2 oz) and females average 81.9 g (2.9 oz). The sexes have the same plumage. Adults have a blackish brown head, neck, and upper breast. Their upperparts are mostly brown with a rich yellow rump. Their wings are mostly brown with rich yellow median and lesser coverts that show as an epaulet. Their tail is brown. Their lower breast and belly are rich yellow and their undertail coverts brown with thin yellow edges. Both sexes have a brown iris, a blackish bill, and blackish legs and feet. Juveniles are similar to adults but have browner upperparts with paler edges on some feathers, a yellowish throat, and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 2 | Iberá National Park | 🇦🇷 Argentina | |
| 3 | Emas National Park | 🇧🇷 Brazil | |
| 4 | Itatiaia National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Curitiba | 🇧🇷 Brazil | |
| 2 | Campinas | 🇧🇷 Brazil | |
| 3 | São Paulo | 🇧🇷 Brazil | |
| 4 | Campo Grande | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Yellow-rumped Marshbird sighting in Curitiba on a given day, based on 88 verified sightings from GBIF citizen-science data. It is the 101st most-seen of the 247 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.
January–April, July and September–October
In those months about 10% of wildlife watchers report a Yellow-rumped Marshbird in Curitiba on a given day, against under 5% in May–June, August and November–December, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Yellow-rumped Marshbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 cities where we can rate Yellow-rumped Marshbird sightings, Curitiba has the highest daily chance: about 10%. Next come Campinas (Brazil, under 5%) and São Paulo (Brazil, under 5%).
Same family: Icteridae
The closest relatives of the Yellow-rumped Marshbird that you can see in Curitiba (family Icteridae, New World Blackbirds and Orioles) are Shiny Cowbird (about 50%), Red-rumped Cacique (about 40%) and Chestnut-capped Blackbird (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-rumped Marshbird is recorded against all the birds logged in Curitiba (88 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.
