Stelgidopteryx ruficollis
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~60%
The southern rough-winged swallow (Stelgidopteryx ruficollis) a species of bird in the family Hirundinidae, the swallows and martins. It is found in Central America from Honduras south, in every mainland South American country except Chile, on Trinidad, and as a vagrant to Aruba, Bonaire, Curaçao, Tobago, and the Falkland Islands.
The southern rough-winged swallow was originally described in 1817 as Hirundo ruficollis by French ornithologist Louis Vieillot in his Nouveau Dictionnaire d'Histoire Naturelle. It was later reassigned to its present genus Stelgidopteryx which was erected in 1858. For much of the twentieth century it and what is now the northern rough-winged swallow (S. serripennis) were treated as conspecific. They are the only members of the genus and form a superspecies.
The southern rough-winged swallow has these four subspecies: The sexes have almost the same plumage. Adult males of the nominate... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Salvador | 🇧🇷 Brazil | |
| 2 | João Pessoa | 🇧🇷 Brazil | |
| 3 | Recife | 🇧🇷 Brazil | |
| 4 | Cali | 🇨🇴 Colombia | |
| 5 | Goiânia | 🇧🇷 Brazil | |
| 6 | Panama City | 🇵🇦 Panama | |
| 7 | Rio de Janeiro | 🇧🇷 Brazil | |
| 8 | Vitória | 🇧🇷 Brazil | |
| 9 | Belo Horizonte | 🇧🇷 Brazil | |
| 10 | Medellín | 🇨🇴 Colombia |
With luck
About 10% of wildlife watchers report a Southern Rough-winged Swallow sighting in Rio de Janeiro on a given day, based on 390 verified sightings from GBIF citizen-science data. It is the 65th most-seen of the 278 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.
November and December
In those months about 20% of wildlife watchers report a Southern Rough-winged Swallow in Rio de Janeiro on a given day, against about 10% in January to October, the lowest months. Those are among Rio de Janeiro's wettest months, with about 230 mm of rain a month against 40 mm in August.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Southern Rough-winged Swallow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 28
Of the 28 cities where we can rate Southern Rough-winged Swallow sightings, Rio de Janeiro ranks 7th at about 10%. The best odds are in Salvador (Brazil, about 20%), João Pessoa (Brazil, about 20%) and Recife (Brazil, about 20%).
Same family: Hirundinidae
The closest relatives of the Southern Rough-winged Swallow that you can see in Rio de Janeiro (family Hirundinidae, Swallows and Martins) are Blue-and-white Swallow (about 50%), Gray-breasted Martin (about 10%) and Brown-chested Martin (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Southern Rough-winged Swallow is recorded against all the birds logged in Rio de Janeiro (390 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.
