Karl Martens

• 
  Barn Owl (London Gallery)
  
• 
  Wren I (London Gallery)
  
• 
  Wren II (London Gallery)
  

• 
  Grey Heron Flying (Unframed)
  
• 
  Northern Harrier Flying (Unframed)
  
• 
  Jay I (Unframed)
  

• 
  Jay II (Unframed)
  
• 
  Osprey (Unframed)
  
• 
  Goshawk (Unframed)
  

• 
  Pochard Flying (Unframed)
  
• 
  Gadwall Flying (Unframed)
  
• 
  Ravens II (Unframed)
  

• 
  Golden Eagle Flying I (Unframed)
  
• 
  Jay Flying II (Unframed)
  
• 
  Golden Eagle (Unframed)
  

• 
  Golden Eagle Flying II (Unframed)
  
• 
  Sandwich Terns
  
• 
  Dove (Unframed) (London Gallery)
  

• 
  Red Grouse I (Framed) (London Gallery)
  
• 
  Red Grouse II (Framed) (London Gallery)
  
• 
  Wood Warbler (Hungerford Gallery)
  

• 
  Bald Eagle (Unframed) (London Gallery)
  
• 
  Pochard Female (Framed) (London Gallery)
  
• 
  Kestrel (Unframed) (Hungerford)
  

• 
  White Tailed Eagle (Framed) (London Gallery)
  
• 
  Pochard Male (Framed) (London Gallery)
  
• 
  Sandwich Tern (Hungerford Gallery)
  

• 
  Great Black Backed Gull (London Gallery)
  
• 
  Pheasant (Female) (Hungerford Gallery)
  
• 
  Smew Male and Female (Unframed) (Hungerford Gallery)
  

• 
  Golden Eagle (Hungerford Gallery)
  
• 
  Bittern (Unframed) (Hungerford Gallery)
  
• 
  Common Loon (Unframed) (Hungerford Gallery)
  

• 
  Ravens III (Unframed) (Hungerford Gallery)
  
• 
  Ravens IV (Unframed) (Hungerford Gallery)
  
• 
  Golden Eagle