Reunion Harrier vs Long-winged Harrier

In short

The Reunion Harrier and Long-winged Harrier can be tricky to distinguish due to their similar shapes and habitats. However, the Reunion Harrier is endemic to the islands of Réunion and Mauritius, while the Long-winged Harrier is found in South America. Key differences lie in their plumage and geographic range.

Identification tips

1. Geographic location: Reunion Harrier is only found on Réunion and Mauritius; Long-winged Harrier is in South America. 2. Plumage: Look for the white rump and underparts in Long-winged Harrier. 3. Male coloration: Reunion Harrier males are grey with black wingtips, while Long-winged Harrier males have a greyish hue. 4. Habitat: Consider the type of open habitat and geographic range.

Size

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

Plumage

Reunion Harrier males are mostly grey with black wingtips, while females and juveniles are brown. Long-winged Harriers have a more distinct white rump and underparts, with males displaying a greyish hue and females being darker.

Behaviour

Both species exhibit typical harrier behavior, flying low over open areas in search of prey.

Habitat

Reunion Harrier is restricted to the islands of Réunion and Mauritius, often in open and semi-open habitats. Long-winged Harrier is found in a variety of open habitats across South America, including marshes and grasslands.

Voice

Vocalizations are not well-documented for these species, but harriers generally have high-pitched calls.