Picture informations: Black guillemot, wing

Author(s) Mark Medcalf
Licence owner Mark Medcalf
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 2.0
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Black guillemot, wing  

Picture informations: Wings of lighter shanks

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Armschwinge mit weißer Endbinde, Innnehälften der Armschwingen dunkel  

Picture informations: Wings of diving ducks

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Armschwinge mit weißem Spiegelfeld  

Picture informations: Wings of colourful dabbling ducks

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Armschwinge mit metallischem Spiegelfeld  

Picture informations: Northern pintail, wing

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Northern pintail, wing  

Picture informations: Eurasian wigeon, wing female

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Eurasian wigeon, wing female  

Picture informations: Wing of merganser

Author(s) Rainer Borcherding
Licence owner Schutzstation Wattenmeer
Licence statement Copyrighted Material; the copyright remains with the author (not this web publication)
Licence cc-by-sa 3.0
Spiegel teils weiß, Schirmfedern grau