Hen Harrier vs Pallid Harrier

In short

The Hen Harrier and Pallid Harrier can be distinguished primarily by their facial features and plumage patterns. Hen Harriers have a more pronounced owl-like facial disc, while Pallid Harriers have a less distinct face and a more uniform underwing pattern. Both species are similar in size and structure, making these subtle differences crucial for identification.

Identification tips

• Facial Disc: Hen Harriers have a more pronounced facial disc compared to Pallid Harriers.
• Underwing Pattern: Male Pallid Harriers have a distinct black trailing edge on the wing, which is less pronounced in Hen Harriers.
• Rump: Both species have a white rump, but it is more conspicuous in Hen Harriers.
• Juvenile Plumage: Juvenile Pallid Harriers have a more uniform brown plumage compared to the more contrasting juvenile Hen Harriers.
• Habitat: Consider the habitat; Hen Harriers are more associated with moorlands, while Pallid Harriers prefer open grasslands.

Size

Both species are similar in size, with long wings and tails typical of harriers.

Plumage

Adult male Hen Harriers are pale gray with black wingtips, while male Pallid Harriers are lighter gray with a distinct black trailing edge on the wing. Female and juvenile Hen Harriers are brown with a white rump, whereas Pallid Harriers have a more uniform brown appearance with less contrast between the body and wings.

Behaviour

Both species exhibit similar hunting behavior, flying low over open fields in search of prey.

Habitat

Hen Harriers are more commonly found in moorlands and marshes, while Pallid Harriers prefer open grasslands and steppes.