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References

 

Blew, J. 2003. New ways to improve and test methods – Quality Assurance activities in breeding bird monitoring. Wadden Sea Newsletter 2003-2, 18-23.

Fleet, D.M., Frikke, J., Südbeck, P. and Vogel, R.L., 1994. Breeding birds in the Wadden Sea 1991. Wadden Sea Ecosystem No. 1. Common Wadden Sea Secretariat, Wilhelmshaven.

Hälterlein, B., Fleet, D.M., Henneberg, H.R., Mennebäck, T., Rasmussen, L-M., Südbeck, P., Thorup, O. and Vogel, R.L., 1995. Anleitung zur Brutbestandserfassungen von Küstenvögeln im Wattenmeerbereich. Wadden Sea Ecosystem No. 3. Common Wadden Sea Secretariat, Wilhelmshaven.

Koffijberg, K., Dijksen, L., Hälterlein, B., Laursen, K., Potel, P. & Südbeck, P., 2006. Breeding birds in the Wadden Sea in 2001. Results from the total survey in 2001 and trends in numbers between 1991-2001. Wadden Sea Ecosystem No 22. Common Wadden Sea Secretariat, Trilateral Monitoring and Assessment Group, Joint Monitoring Group of Breeding Birds in the Wadden Sea, Wilhelmshaven, Germany.

Melter, J., Südbeck, P., Fleet, D.M., Rasmussen, L-M. and Vogel, R.L., 1997. Changes in breeding bird numbers in census areas in the Wadden Sea 1990 until 1994. Wadden Sea Ecosystem No. 4. Common Wadden Sea Secretariat, Wilhelmshaven.

Pannekoek J. and van Strien, A.J., 1999. Missen is gissen. Ontbrekende tellingen in vogelmeetnetten. Limosa 72, 49-54.

Rasmussen, L-M., Fleet, D.M., Hälterlein, B., Koks, B.J., Potel, P. and Südbeck, P., 2000. Breeding birds in the Wadden Sea in 1996. Wadden Sea Ecosystem No. 10. Common Wadden Sea Secretariat, Wilhelmshaven.

 

 

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