Western Marsh-Harrier
Circus aeruginosus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAccipitriformes
- FamilyAccipitridae (Accipítrids)
- GenusCircus (Harriers)
- SpeciesCircus aeruginosus (Western Marsh-Harrier)
The western marsh harrier (Circus aeruginosus) is a large harrier, a bird of prey from temperate and subtropical western Eurasia and adjacent Africa. It is also known as the Eurasian marsh harrier. Formerly, a number of relatives were included in C. aeruginosus, which was then known as "marsh harrier". The related taxa are now generally considered to be separate species: the eastern marsh harrier (C. spilonotus), the Papuan harrier (C. spilothorax) of eastern Asia and the Wallacea, the swamp harrier (C. approximans) of Australasia and the Madagascar marsh harrier (C. maillardi) of the western Indian Ocean islands. The western marsh harrier is often divided into two subspecies, the widely migratory C. a. aeruginosus which is found across most of its range, and C. a. Wikipedia →
Closest Relatives at Kanha National Park
Montagu's Harrier
Circus pygargus
Pale Harrier
Circus macrourus
Crested Serpent Eagle
Spilornis cheela
Indian White-rumped Vulture
Gyps bengalensis
Oriental Honey-buzzard
Pernis ptilorhynchus
Black-winged Kite
Elanus caeruleus
Indian Vulture
Gyps indicus
Crested Hawk-Eagle
Nisaetus cirrhatus
Himalayan Buzzard
Buteo refectus
Gray-headed Fish-Eagle
Icthyophaga ichthyaetus
White-eyed Buzzard
Butastur teesa
Red-headed Vulture
Sarcogyps calvus
📅 Monthly Probability
Fewer than 5 records of Western Marsh-Harrier at Kanha National Park — not enough to chart months honestly.
☀️ 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