Stelgidopteryx ruficollis
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Southern Rough-winged Swallow sighting in Buenos Aires on a given day, based on 379 verified sightings from GBIF citizen-science data. It is the 157th most-seen of the 274 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
December
In that month about 10% of wildlife watchers report a Southern Rough-winged Swallow in Buenos Aires on a given day, against under 5% in January to November, the lowest months.
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.
18th of 28
Of the 28 cities where we can rate Southern Rough-winged Swallow sightings, Buenos Aires ranks 18th at under 5%. 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 Buenos Aires (family Hirundinidae, Swallows and Martins) are Brown-chested Martin (about 30%), Gray-breasted Martin (about 30%) and Blue-and-white Swallow (about 30%), 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 Buenos Aires (379 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.
