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Illustration of a Brown-and-yellow Marshbird (Pseudoleistes virescens) egg, 25.1 × 18.8 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Pseudoleistes virescens

  • 25.1 × 18.8 mm
Breeds in Argentina, Brazil, Uruguay

Glossy white or pinkish white, densely speckled and blotched reddish brown, maroon and lavender grey in an irregular cap at the broad end.

Sources of information

Size
Average of 30 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 422.
Description
Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 11, p. 215.
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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