Annex "Breeding birds" (2017) Breeding success in the Wadden Sea 2009-2012. A review. Trends of Breeding Birds in the Wadden Sea 1991-2013. Trends of Breeding Birds in the Wadden Sea 1991-2009. Breeding Birds in Trouble. Breeding Birds in the Wadden Sea in 2001. Breeding Birds in the Wadden Sea in 1996.
