Food

The diet of the Black Palm Cockatoo, Probosciger aterrimus, is primarily herbivorous, consisting of a diverse range of fruits, seeds, nuts, and berries found within its rainforest habitat. They may also consume plant matter such as flowers, buds, and leaf shoots, supplementing their diet with additional nutrients and moisture.

They feed on a variety of fruiting trees found in their rainforest habitat, including figs, pandanus, and various species of palms. Fruits are often consumed whole, with the birds using their powerful beaks to extract the seeds and pulp from the fruit.

Seeds and nuts are another important food source for Black Palm Cockatoos, providing them with a rich source of protein, fat, and energy. They feed on a variety of seeds and nuts found in their environment, including those from palm trees, casuarina trees, and other hardwood species.

In addition to fruits, seeds, and nuts, Black Palm Cockatoos may also consume a variety of plant matter such as flowers, buds, and leaf shoots. These plant materials provide additional nutrients and moisture to supplement their diet, particularly during periods of fruit scarcity or drought.

They may forage for flowers and buds in the canopy of the forest, using their agile flight and strong beaks to access these food sources.

During the breeding season, Black Palm Cockatoos may supplement their diet with insects and their larvae, particularly when extra protein is needed for egg production and chick rearing.

Black Palm Cockatoos are known for their nomadic movements in search of food, with individuals traveling considerable distances to access seasonal food sources or suitable feeding sites. They may form small groups or pairs while foraging, sharing information about food sources and cooperating to locate and access food. The availability of food resources plays a significant role in shaping the behavior and ecology of Black Palm Cockatoos, influencing their movements, habitat use, and social interactions.