Europe
AEWA Action Plans
Ferruginous Duck White-headed Duck
EU Action Plans
EU Management Plans
Northern Pintail 2007-2009 Red-crested Pochard 2007-2009
Greater Scaup 2009-2011 Velvet Scoter 2007-2009
Other conservation plans
White-headed Duck Recovery Plan for Murcia region (Spain) 2016
Research groups
Duck research in Portugal by David Rodrigues
Harvest information
Joensen, A.H. 1978. Statistics of Duck Hunting in Denmark 1966-1976.
Theses
Other books and reports
Moulting Shelduck in the Wadden Sea 2010-2012
The Garganey in the former USSR (Wetlands International)
The Garganey and Shoveler in the Baltic States and Belarus (OMPO)