Black Grouse (Lyrurus tetrix) Egg ©WikiC Published August 6, 2013 at 470 × 600 in Vol 2, #6 – The Black Grouse ← Previous Black Grouse (Lyrurus tetrix) Egg ©WikiC 11 Black Grouse (Lyrurus tetrix) Egg ©WikiC Share this:FacebookEmailMorePinterestLike this:Like Loading...