Bonasa umbellus
- 38.9 × 29.6 mm
- Clutch: 9–14 eggs
Breeds in Canada, United States
Milky to cinnamon buff sometimes spotted with reddish or brown.
Sources of information
- Size
- Average of 73 eggs: Bent, A. C. 1932. Life histories of North American gallinaceous birds. U.S. National Museum Bulletin 162, scan leaf 165 (account begins scan leaf 157).
- Description
- Cornell Lab of Ornithology, All About Birds: Ruffed Grouse, Life History.
Drawing checked against a photo: Flickr photo by Burke Museum; Bird Eggs of Canada photo (Royal Saskatchewan Museum). - Clutch
- Cornell Lab of Ornithology, All About Birds.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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