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Illustration of a Grassland Yellow Finch (Sicalis luteola) egg, 17.63 × 13.44 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Sicalis luteola

  • 17.63 × 13.44 mm
  • Clutch: 3–6 eggs
Breeds in Mexico, Central America (5 countries), the Caribbean and South America (12 countries)
show all 20Mexico: Mexico
Central America: Belize, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela

White, cream or pale bluish white, thickly speckled and spotted bright reddish brown and chestnut over pale violet-grey under-marks, usually forming a ring or cap at the blunt end.

Sources of information

Size
Salvador, S. A. & Salvador, L. A. 1986. Nota sobre la reproducción del misto (Sicalis luteola) en Córdoba, Argentina. El Hornero 12: 274-280., p. 277 (Table 1, p. 278).
Agrees with: Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum (Natural History), Vol. 5. London: British Museum. [Sycalis luteola; normal eggs .64-.8 x .5-.57 in = 16.3-20.3 x 12.7-14.5 mm; two abnormal large eggs; Uruguay, Argentina, Chile], p. 219.
Description
Salvador, S. A. & Salvador, L. A. 1986 (Córdoba, Argentina); supporting: British Museum Catalogue of the Collection of Birds' Eggs (BM).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 42.
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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