RICHARD WILLIAMSON: Keep your eyes peeled for marsh harrier
Females have a long brown tail and body, but their head and chin are creamy white.
The wings have whiter patches, too. The males have grey tails and wing patches.
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Hide AdAbout the size of a buzzard but with a very different, low flight, the marsh harrier also has longer, more ragged wings.
There are about 5,000 pairs in north-west Europe, 200 of these in Britain, breeding mainly in East Anglia, but also the Somerset Levels.
Harriers take small birds and mammals.
They are becoming a conservation success story, mainly because of the successful management of habitats by the RSPB.