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Illustration of a Buff-collared Nightjar (Antrostomus ridgwayi) egg, 29.4 × 22 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Antrostomus ridgwayi

  • 29.4 × 22 mm (estimated)
  • Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
  • Clutch: 2 eggs
Breeds in United States, Mexico, Guatemala, Honduras

Buffy with lilac and brown splotches.

Sources of information

Size
Estimated: no average found, so this uses the Mexican Whip-poor-will's average from Bent, Life Histories of North American Cuckoos, Goatsuckers, Hummingbirds and Their Allies (U.S. National Museum Bulletin 176, 1940), p. 186.
Description
Cornell Lab of Ornithology, All About Birds: Buff-collared Nightjar, Life History.
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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