Key information
The largest of the harriers, the marsh harrier can be recognised by its long tail and light flight with wings held in a shallow 'V'. It is distinguishable from other harriers by its larger size, heavier build, broader wings and absence of white on the rump. Females are larger than males and have obvious creamy heads.
Its future in the UK is now more secure than at any time during the last century, but historical declines and subsequent recovery means it is an Amber List species. Marsh harriers are a Schedule 1 listed bird on The Wildlife and Countryside Act.
What they eat:
Small birds and mammals.
Measurements:
- Length:
- 48-56cm
- Wingspan:
- 115-130cm
- Weight:
- 400-660g (male); 540-800g (female)
Population:
- UK breeding:
- 400 pairs
Identifying features:
This bird species has different identifying features depending on sex/age/season.
Marsh harrier (male)

Marsh harrier (female/juvenile)
