Variable Hawk
Buteo polyosoma
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAccipitriformes
- FamilyAccipitridae (Accipítrids)
- GenusButeo (Buteos)
- SpeciesButeo polyosoma (Variable Hawk)
The variable hawk (Geranoaetus polyosoma) is a polymorphic species of bird of prey in the family Accipitridae. It is widespread and often common in open habitats in western and southern South America, including the Falkland Islands. Its taxonomy is disputed, with some splitting it into the widespread red-backed hawk (G. polyosoma) and the Puna hawk or Gurney's hawk (G. poecilochrous) of the central and north Andean highlands, but the differences between the two are unclear. Most recent authorities have supported the lumping together of the two hawks although the issue still is controversial. On the contrary, the rare taxon from the Juan Fernández Islands is relatively distinctive, and possibly worthy of species recognition as the Juan Fernández hawk (B. exsul). In this article and most current accounts, the three races are regarded as subspecies. Wikipedia →
<5% of wildlife watchers report a Variable Hawk sighting in Madidi National Park, based on 6 days of visitor records from GBIF citizen-science data.
Closest Relatives at Madidi National Park
Gray-lined Hawk
Buteo nitidus
White-tailed Hawk
Buteo albicaudatus
Broad-winged Hawk
Buteo platypterus
Short-tailed Hawk
Buteo brachyurus
Zone-tailed Hawk
Buteo albonotatus
Roadside Hawk
Rupornis magnirostris
Plumbeous Kite
Ictinia plumbea
White Hawk
Leucopternis albicollis
American Swallow-tailed Kite
Elanoides forficatus
Double-toothed Kite
Harpagus bidentatus
Ornate Hawk-Eagle
Spizaetus ornatus
Great Black-Hawk
Buteogallus urubitinga
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Lauca National Park | 🇨🇱 Chile | |
| 2 | Península Valdés | 🇦🇷 Argentina | |
| 3 | Cajas National Park | 🇪🇨 Ecuador | |
| 4 | Huascarán National Park | 🇵🇪 Peru | |
| 5 | Vicente Pérez Rosales National Park | 🇨🇱 Chile | |
| 6 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 7 | Amboró National Park | 🇧🇴 Bolivia | |
| 8 | Paracas National Reserve | 🇵🇪 Peru | |
| 9 | Podocarpus National Park | 🇪🇨 Ecuador | |
| 10 | Puracé National Natural Park | 🇨🇴 Colombia | |
| 11 | Madidi National Park | 🇧🇴 Bolivia | |
| 12 | Tierra del Fuego National Park | 🇦🇷 Argentina | |
| 13 | Torres del Paine National Park | 🇨🇱 Chile | |
| 14 | Los Nevados National Natural Park | 🇨🇴 Colombia | |
| 15 | Machalilla National Park | 🇪🇨 Ecuador | |
| 16 | Cordillera Azul National Park | 🇵🇪 Peru |
Quick answers
What are the chances of seeing a Variable Hawk in Madidi National Park?
About 1% of wildlife watchers report a Variable Hawk sighting in Madidi National Park, based on 6 days of visitor records from GBIF citizen-science data.
When is the best time to see Variable Hawk in Madidi National Park?
April has the highest sighting rate for Variable Hawk in Madidi National Park in our monthly data.