Before incubation, the females of all Bucerotinae—sometimes assisted by the male—begin to close the entrance to the nest cavity with a wall made of mud, droppings and fruit pulp.
Antes da incubación as femias de todos os Bucerotinae (ás veces asistidas polos machos) empezan a pechar a cavidade de entrada do niño cunha parede feita de lama, feces e polpa de froita.