Rupornis magnirostris
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~40%
The roadside hawk (Rupornis magnirostris) is a relatively small bird of prey found in the Americas. This vocal species is often the most common raptor in its range. It has many subspecies and is now usually placed in the monotypic genus Rupornis instead of Buteo.
The roadside hawk was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the eagles, hawks and relatives in the genus Falco and coined the binomial name Falco magnirostris. Gmelin based his description on the "Épervier à gros bec de Cayenne" that had been described and illustrated in 1770 by the French polymath Comte de Buffon in his multi-volume Histoire Naturelle des Oiseaux. The roadside hawk is now the only species placed in the genus Rupornis that was introduced in 1844 by the German naturalist Johann Jakob Kaup. The genus name combines the Ancient Greek rhupos meaning "dirt" or "filth" with ornis meaning "bird". The specific epithet magnirostris combines the Latin magnus meaning "great" with -rostris meaning "billed".
Twelve subspecies are recognised. Their distributions are... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Luís | 🇧🇷 Brazil | |
| 2 | Natal | 🇧🇷 Brazil | |
| 3 | Salvador | 🇧🇷 Brazil | |
| 4 | Recife | 🇧🇷 Brazil | |
| 5 | Cali | 🇨🇴 Colombia | |
| 6 | Fortaleza | 🇧🇷 Brazil | |
| 7 | João Pessoa | 🇧🇷 Brazil | |
| 8 | Cochabamba | 🇧🇴 Bolivia | |
| 9 | Medellín | 🇨🇴 Colombia | |
| 10 | Asuncion | 🇵🇾 Paraguay |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zoológico de Brasília | 🇧🇷 Brazil | |
| 2 | Parque Municipal Summit | 🇵🇦 Panama | |
| 3 | Parque Zoobotânico Arruda Câmara (BICA) | 🇧🇷 Brazil | |
| 4 | Zoológico Dois Irmãos | 🇧🇷 Brazil | |
| 5 | Municipal Zoological Park Quinzinho de Barros | 🇧🇷 Brazil | |
| 6 | Bioparque Los Ocarros | 🇨🇴 Colombia | |
| 7 | Zoológico do CIGS | 🇧🇷 Brazil | |
| 8 | Mangal das Garças | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Roadside Hawk sighting in Manaus on a given day, based on 39 verified sightings from GBIF citizen-science data. It is the 48th most-seen of the 116 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Roadside Hawk in Manaus on a given day, against under 5% in January–February and September, the lowest months. That is one of Manaus's driest months, with about 50 mm of rain against 270 mm in March.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Roadside Hawk sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
34th of 42
Of the 42 cities where we can rate Roadside Hawk sightings, Manaus ranks 34th at about 10%. The best odds are in São Luís (Brazil, about 50%), Natal (Brazil, about 50%) and Salvador (Brazil, about 50%).
GBIF citizen-science records
It is estimated from how often the Roadside Hawk is recorded against all the birds logged in Manaus (39 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.
