The aquatic warbler is a regular but scarce autumn migrant to certain areas in southern Britain, visiting on its way between breeding grounds in eastern Europe and its winter home in West Africa. Its dependence on a specialised and vulnerable breeding habitat means it has become a globally threatened and declining species. It is more yellow-brown and streaked than the similar sedge warbler with a distinct yellow crown stripe.
What they eat:
Insects, grubs, caterpillars and spiders.
- UK passage:
- 42 birds
- 12-20,000 pairs