Royal antelope
A herbivore, the royal antelope prefers small quantities of fresh foliage and shoots; fruits and fungi may be taken occasionally. Though the antelope is considered to be nocturnal, zoologist Jonathan Kingdon holds that feeding occurs throughout the day, though some foraging may also be observed at night. In comparison to Bates's pygmy antelope, the royal antelope has a longer muzzle, broader lips, a smaller mouth and smaller cheek muscles. These features do not allow complete digestion of lignified growth. Individuals may often move into new locations foraging for fresh growth.
Dull-mantled antbird
The diet of the dull-mantled antbird is composed of insects and other arthropods; recorded prey items are spiders (Araneae), cockroaches (Blattaria), beetles (Coleoptera), crickets (Gryllidae), woodlice (Oniscidea) and indeterminate insect larvae. It feeds as an individual, as a pair or in small family groups, moving close to the ground – usually not more than 10 cm above the forest floor –, every now and then jumping up to a low branch to take a look around and immediately descending again. Its prey is usually caught by gleaning, pecked up from between the leaf litter or, after a jump up or a short flutter, from vegetation. It rarely rummages through the leaf litter to search for prey; rather, it will observe its surroundings tensely, beating down its tail forcefully and slowly raising it up again, and then strike directly at something that has attracted its interest. Small prey is devoured immediately; larger animals are beaten vigorously on branches to make them easier to swallow. The species will occasionally follow army ants but it is not an obligate ant-follower like some other true antbirds or ground antbirds (Formicariidae); while it may join mixed-species feeding flocks on occasion, it usually prefers to forage on its own or with its family.