Pallid Harrier vs Montagu's Harrier

In short

To distinguish a Pallid Harrier from a Montagu's Harrier, focus on the facial pattern and underwing markings. The Pallid Harrier often shows a more pronounced facial pattern with a distinct white collar and a broader, more contrasting dark trailing edge on the underwing. Montagu's Harrier has a subtler facial pattern and narrower dark trailing edge.

Identification tips

• Look for the white collar and broader dark trailing edge on the underwing of the Pallid Harrier.
• Check the facial pattern: more pronounced in Pallid Harrier.
• Observe the wingtip markings: broader in Pallid Harrier males.
• Consider habitat: Montagu's Harriers may be more common in agricultural areas.
• Note behavior: Pallid Harriers can appear more buoyant in flight.

Size

Both species are similar in size, with slender bodies and long wings, but the Pallid Harrier can appear slightly bulkier.

Plumage

Adult male Pallid Harriers have a pale gray plumage with a distinctive white collar and broader black wingtips, while Montagu's Harriers are also pale gray but lack the collar and have narrower black wingtips. Females and juveniles of both species are brown, but Pallid Harriers show a more distinct facial pattern and broader dark trailing edge on the underwing.

Behaviour

Both species exhibit similar hunting behaviors, flying low over fields and grasslands, but the Pallid Harrier may appear more buoyant in flight.

Habitat

Both species prefer open habitats like grasslands and marshes, but Montagu's Harriers are more likely to be found in agricultural areas.

Voice

Vocalizations are not a reliable field mark for distinguishing these species, as both are generally silent outside the breeding season.