By grrlscientist on January 29, 2008. tags: birds, Black Grouse, Tetrao tetrix, ornithology, Image of the Day Data in the climatic atlas show that the distribution of the Black Grouse, Tetrao tetrix, is likely to be affected by climate change Image: Chris Gomersall/RSPB Images. Tags image of the day ornithology zoology birds black grouse Tetrao tetrix image of the day ornithology zoology Log in to post comments More like this