blue grouse Directory References Contents Ask the Chatbot a Question blue grouse bird Ask the Chatbot a Question Also known as: Dendragapus obscurus Learn about this topic in these articles:description In grouse…of evergreen forests is the blue grouse (Dendragapus obscurus), a big, dark bird, plainer and longer-tailed than the spruce grouse and heavier than the ruffed grouse.Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.