Beobachtungen zur Fortpflanzungsbiologie des Stirnbandibis,Harpiprion caerulescens

Summary In the Pantanal of Mato Grosso hatching and rearing of the chicks of the Plumbeous Ibis (Harpiprion caerulescens) was observed towards the end of the dry season (mid-August until mid-October). Mating and nest-building was already noticed earlier in the year (March/April). A nest was found 12 m up in a tree in a sparsely wooded area. It was built of dry twigs and its cavity was lined with leaves and grass. Both partners shared in nest-building. The clutch consisted of two pale grey eggs (67 × 44 mm). The chicks hatched on 6th September. Until they were ten days old, the two young birds received constant attention from both parents who took over from each other five times a day and both fed the young. Later, the young birds were gradually left unprotected for longer periods. They fledged on the 43rd day after hatching.