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Illustration of a Barn Swallow (Hirundo rustica) egg, 18.8 × 13.5 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Hirundo rustica

  • 18.8 × 13.5 mm
  • Clutch: 3–7 eggs
Breeds in Canada, United States, Mexico, Argentina, Uruguay

Creamy or pinkish white, spotted with brown, lavender, and gray.

Sources of information

Size
Average of 50 eggs: Bent, Life Histories of North American Flycatchers, Larks, Swallows, and Their Allies (U.S. National Museum Bulletin 179, 1942), p. 448.
Agrees with: Cornell Lab of Ornithology, All About Birds: Barn Swallow, Life History.
Description
Cornell Lab of Ornithology, All About Birds: Barn Swallow, Life History.
Drawing checked against a photo: Wikimedia Commons photo; 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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