Plectrophenax hyperboreus
- 23.2 × 17.3 mm
Breeds in United States
Pale greenish white, spotted and blotched with brown.
Sources of information
- Size
- Average of 7 eggs: Bent, Life Histories of North American Cardinals, Grosbeaks, Buntings, Towhees, Finches, Sparrows, and Allies (U.S. National Museum Bulletin 237, Part 3, 1968), p. 1679.
- Description
- Bent, Life Histories of North American Cardinals, Grosbeaks, Buntings, Towhees, Finches, Sparrows, and Allies (U.S. National Museum Bulletin 237, Part 3, 1968), p. 1679.
- 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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