The cobalt-blue eggs average about 48 mm × 38 mm (1.9 in × 1.5 in) and weigh about 43 g (1.5 oz). The female incubates the eggs between 30 and 36 days.[2] The hatchlings are about 28 g (0.99 oz) and 9 cm (3.5 in) long and are completely covered in white down.[3] They are brooded for about two weeks by the female, while her mate forages for food.