Black Grouse look-alikes
Tetrao tetrix
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Open the appSeveral birds can be mistaken for the Black Grouse. Compare the key differences below to confirm your sighting.
Birds to compare
Capercaillie
Tetrao urogallus
Key differences
Male Capercaillie is much larger (up to 90 cm length, 4 kg weight), has a rounded tail (not lyre-shaped), and a more robust, hooked beak. Its plumage is darker, often with green iridescence on the breast. Female Capercaillie is also larger than female Black Grouse, with a more rufous-brown plumage and a distinct pale patch on the shoulder.
Hazel Grouse
Tetrastes bonasia
Key differences
Hazel Grouse is significantly smaller (35-39 cm). Males have a small crest and a black throat patch bordered by white. Both sexes have a distinctive barred tail with a broad black subterminal band and a white tip. They prefer denser forest habitats.
Willow Ptarmigan / Willow Grouse
Lagopus lagopus
Key differences
Willow Ptarmigan is smaller (35-43 cm) and undergoes dramatic seasonal plumage changes, turning mostly white in winter. In summer, it is rufous-brown with white wings and belly. It lacks the lyre-shaped tail of the male Black Grouse and the distinct barring of the female.
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