National Geographic : 1950 May
© National Geographic Society 656 Kodacrones by P1aul A. Zahl Crimson Feathers with Dark Chevrons Come from the Spotted Eggs of Ibis Stylish wing tips are worn by both the scarlet and white birds. Full coloration marks the first four primaries only after several molts. Plate on page 655 illustrates the effect on open wings. As many as four eggs, varying a bit in shape and color, may be found in an ibis clutch. They hatch out in about three weeks. In interior Venezuela the breeding season coincides with the June-October rainy period. The rarer coastal ibis has been observed nesting a month or two earlier.