A non-navigable tidal branch of the River Weser, with mudflats and fringed by grassland and reedbeds (Phragmites).
The site holds 20,000 or more waterbirds in winter, on a regular basis. Species of global conservation concern that do not meet IBA criteria: Crex crex (10 breeding pairs).
BirdLife International (2020) Important Bird Areas factsheet: Lower reaches of River Weser, unembanked area. Downloaded from http://www.birdlife.org on 28/02/2020.