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Illustration of a Southern Giant Petrel (Macronectes giganteus) egg, 104.4 × 65.9 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Macronectes giganteus

  • 104.4 × 65.9 mm
  • Clutch: 1 egg
Breeds in Argentina, Chile, Falkland Islands

White, unmarked, dull; becomes heavily soiled with nest stains during incubation.

Sources of information

Size
Average of 100 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 1. Akademie-Verlag, Berlin., p. 62.
Description
Hauber, M. E. (ed.) 2014. The Book of Eggs. University of Chicago Press (photo and text), p. 43.
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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