Cranioleuca vulpina
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~50%
The rusty-backed spinetail (Cranioleuca vulpina) is a Neotropical species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Paraguay, Peru, Venezuela, and possibly Guyana.
The rusty-backed spinetail was formally described in 1856 by the Austrian ornithologist August von Pelzeln under the binomial name Synallaxis vulpina. Its specific epithet is from Latin vulpinus meaning "fox-like" (ie reddish-brown above and white beneath). The rusty-backed spinetail is now placed in the genus Cranioleuca that was introduced in 1853 by Ludwig Reichenbach.
Four subspecies are recognized: What are now the Coiba spinetail (C. dissita) and Parker's spinetail (C. vulpecula) were previously treated as subspecies of the rusty-backed spinetail. Other subspecies have been proposed but have not been accepted as valid.
The rusty-backed spinetail is 15 to 16 cm (5.9 to 6.3 in) long and weighs 14 to 17 g (0.49 to 0.60 oz). The sexes have the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Coiba National Park | 🇵🇦 Panama | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 3 | Anavilhanas National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Goiânia | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Rusty-backed Spinetail sighting in Anavilhanas National Park on a given day, based on 39 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 107th most-seen of the 291 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June, August and November
In those months about 20% of wildlife watchers report a Rusty-backed Spinetail in Anavilhanas National Park on a given day, against under 5% in February–April and September, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Rusty-backed Spinetail 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 3
Of the 3 parks where we can rate Rusty-backed Spinetail sightings, Anavilhanas National Park ranks 3rd at about 10%. The best odds are in Coiba National Park (Panama, about 40%) and Parque Estadual Encontro das Águas (Brazil, about 20%).
GBIF citizen-science records
It is estimated from how often the Rusty-backed Spinetail is recorded against all the birds logged in Anavilhanas National Park (39 verified sightings from 2019 to 2026), 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.
