Schoeniophylax phryganophilus
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~30%
The chotoy spinetail (Schoeniophylax phryganophilus) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. The chotoy spinetail was originally described in genus Sylvia. Later authors placed it in Synallaxis but by the early 2010s it was recognized in its own genus Schoeniophylax. It and the white-bellied spinetail (Mazaria propinqua) are sister species.
The chotoy spinetail is 20 to 22 cm (7.9 to 8.7 in) long and weighs 15 to 22.5 g (0.53 to 0.79 oz). It is a large spinetail with a unique throat pattern. The sexes have the same plumage. Adults of the nominate subspecies have a white supercilium and light brown ear coverts. Their forehead is dark brown, their crown chestnut with faint brown streaks, their back sandy brown with obvious dark brown streaks, and their lower back, rump, and uppertail coverts light brown. Their wings are mostly light brown with a chestnut shoulder. Their tail is long and light brown with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 3 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 4 | El Palmar National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 2 | Rosario | 🇦🇷 Argentina | |
| 3 | Asuncion | 🇵🇾 Paraguay | |
| 4 | Buenos Aires | 🇦🇷 Argentina |
With luck
About 10% of wildlife watchers report a Chotoy Spinetail sighting in Asuncion on a given day, based on 91 verified sightings from GBIF citizen-science data. It is the 100th most-seen of the 224 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April–May, September and November–January
In those months about 10% of wildlife watchers report a Chotoy Spinetail in Asuncion on a given day, against under 5% in February–March, June–August and October, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Chotoy 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 4
Of the 4 cities where we can rate Chotoy Spinetail sightings, Asuncion ranks 3rd at about 10%. The best odds are in Santa Cruz de la Sierra (Bolivia, about 20%) and Rosario (Argentina, about 20%).
Same family: Furnariidae
The closest relatives of the Chotoy Spinetail that you can see in Asuncion (family Furnariidae, Ovenbirds and Woodcreepers) are Rufous Hornero (about 80%), Narrow-billed Woodcreeper (about 40%) and Greater Thornbird (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chotoy Spinetail is recorded against all the birds logged in Asuncion (91 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.
