Cranioleuca vulpina
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~60%
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 Goiânia on a given day, based on 62 verified sightings from GBIF citizen-science data. It is the 81st most-seen of the 174 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January, April, June–July and September
In those months about 20% of wildlife watchers report a Rusty-backed Spinetail in Goiânia on a given day, against under 5% in March and May, 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.
Only Goiânia, in our data
Goiânia is the only city on Wallace's Line with enough records to rate Rusty-backed Spinetail sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Furnariidae
The closest relatives of the Rusty-backed Spinetail that you can see in Goiânia (family Furnariidae, Ovenbirds and Woodcreepers) are Rufous Hornero (about 70%), Buff-throated Woodcreeper (about 10%) and Red-billed Scythebill (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rusty-backed Spinetail is recorded against all the birds logged in Goiânia (62 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.
