Buteo ventralis
Silhouette: Lauren Anderson · PhyloPic
In 3 days <5%
The rufous-tailed hawk (Buteo ventralis) is a species of bird of prey in the family Accipitridae. The rufous-tailed hawk is found in southern Argentina and Chile, including the entire region of Tierra del Fuego. Its natural habitats are temperate forests, subtropical or tropical dry shrubland, subtropical or tropical high-altitude shrubland, and temperate grassland.
The rufous-tailed hawk is similar to the red-tailed hawk. It was first recorded by Charles Darwin in Patagonia while on his voyage of the Beagle. The rufous-tailed hawk is a medium-sized hawk with a wing span of 45–60 cm. The overall size range of the hawk is 54–60 cm. There are two different colorations of the rufous-tailed hawk. The more common pale version of the hawk has a blackish brown upper parts, with a darker cap and cinnamon feathers along the side of the head and neck. The belly is white with dark markings and reddish brown coloration on it. The dark version is basically all black with whitish edging on the feathers. The call of the rufous-tailed hawk sounds like kee-ahrr.
The rufous-tailed hawk has been spotted living in a number of different habitat types, including evergreen... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vicente Pérez Rosales National Park | 🇨🇱 Chile | |
| 2 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 3 | Tierra del Fuego National Park | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Rufous-tailed Hawk sighting in Tierra del Fuego National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 74th most-seen of the 78 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 Rufous-tailed Hawk in Tierra del Fuego National Park on a given day, so our monthly data shows no clear season. June has too few records to rate.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Rufous-tailed Hawk sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 parks where we can rate Rufous-tailed Hawk sightings, Tierra del Fuego National Park ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Vicente Pérez Rosales National Park (Chile, under 5%) and Nahuel Huapi National Park (Argentina, under 5%).
GBIF citizen-science records
It is estimated from how often the Rufous-tailed Hawk is recorded against all the birds logged in Tierra del Fuego National Park (8 verified sightings from 2019 to 2026), 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.
