Montagu's Harrier
Circus pygargus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderAccipitriformes
- FamilyAccipitridae (Accipítrids)
- GenusCircus (Harriers)
- SpeciesCircus pygargus (Montagu's Harrier)
Montagu's harrier (Circus pygargus) is a species of harrier, a bird of prey in the family Accipitridae. It breeds in large open areas in the Palearctic and is migratory, wintering in Africa, the Indian subcontinent and parts of the Arabian Peninsula. Its common name commemorates the British naturalist George Montagu. Wikipedia →
20–30% of wildlife watchers report a Montagu's Harrier sighting in Biebrza National Park, based on 287 days of visitor records from GBIF citizen-science data.
Closest Relatives at Biebrza National Park
Western Marsh-Harrier
Circus aeruginosus
Hen Harrier
Circus cyaneus
Pale Harrier
Circus macrourus
Common Buzzard
Buteo buteo
White-tailed Eagle
Haliaeetus albicilla
Eurasian Sparrowhawk
Accipiter nisus
Lesser Spotted Eagle
Aquila pomarina
Rough-legged Hawk
Buteo lagopus
European Honey-buzzard
Pernis apivorus
Red Kite
Milvus milvus
Black Kite
Milvus migrans
Short-toed Eagle
Circaetus gallicus
📅 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
Quick answers
What are the chances of seeing a Montagu's Harrier in Biebrza National Park?
About 21% of wildlife watchers report a Montagu's Harrier sighting in Biebrza National Park, based on 287 days of visitor records from GBIF citizen-science data.
When is the best time to see Montagu's Harrier in Biebrza National Park?
May has the highest sighting rate for Montagu's Harrier in Biebrza National Park in our monthly data.