Sterna hirundinacea
- 47.16 × 32.06 mm
Breeds in Argentina, Brazil, Chile, Ecuador, Falkland Islands, Peru, Uruguay
Creamy buff (also pale green, reddish or olive buff) with blackish-brown and pale inky-purple spots and blotches.
Sources of information
- Size
- Average of 2 eggs: Stoddard, M. C., et al. 2017. Avian egg shape: form, function, and evolution. Science 356: 1249-1254 (Data S1, MVZ egg collection).
- Description
- Oates 1901 (BM Egg Catalogue vol 1); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 5, p. 162. - 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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