Karl Martens

• 
  Sandwich Terns (Unframed) (Hungerford Gallery)
  
• 
  Caspian Terns (Unframed) (London Gallery)
  
• 
  Dove (Unframed) (Hungerford Gallery)
  

• 
  Pygmy Owl (London Gallery)
  
• 
  Red Grouse I (Unframed) (Hungerford Gallery)
  
• 
  Red Grouse II (Unframed) (Hungerford Gallery)
  

• 
  Goshawk (Unframed)
  
• 
  Wood Warbler (London Gallery)
  
• 
  Bald Eagle (Unframed) (Hungerford)
  

• 
  Crane (Framed) (Cricket House)
  
• 
  Pochard Female (Framed) Hungerford Gallery
  
• 
  American Kestrel (Unframed) (Hungerford)
  

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

• 
  Great Black Backed Gull (London Gallery)
  
• 
  Hobby (framed)
  
• 
  Pheasant (Female) (Hungerford Gallery)
  

• 
  Smew Male and Female (Unframed) (Hungerford Gallery)
  
• 
  Kingfisher V
  
• 
  Barn Owl (Unframed) (London Gallery)
  

• 
  Kingfisher VI
  
• 
  Barn Owl (London Gallery)
  
• 
  Red Kite (Hungerford Gallery)
  

• 
  Snowy Owl, Female (Hungerford Gallery)
  
• 
  Golden Eagle (Hungerford Gallery)
  
• 
  Bittern (Unframed) Hungerford Gallery
  

• 
  Common Loon (Unframed) (Hungerford Gallery)