Schoeniophylax phryganophilus
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
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 |
Rare
Under 5% of wildlife watchers report a Chotoy Spinetail sighting in Buenos Aires on a given day, based on 100 verified sightings from GBIF citizen-science data. It is the 197th most-seen of the 274 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Chotoy Spinetail in Buenos Aires on a given day, so our monthly data shows no clear season.
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.
4th of 4
Of the 4 cities where we can rate Chotoy Spinetail sightings, Buenos Aires ranks 4th at under 5%. The best odds are in Santa Cruz de la Sierra (Bolivia, about 20%), Rosario (Argentina, about 20%) and Asuncion (Paraguay, about 10%).
Same family: Furnariidae
The closest relatives of the Chotoy Spinetail that you can see in Buenos Aires (family Furnariidae, Ovenbirds and Woodcreepers) are Rufous Hornero (about 90%), Narrow-billed Woodcreeper (about 40%) and Sooty-fronted Spinetail (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 Buenos Aires (100 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.
