The behavior of Southern Emerald-Toucanet is not described in much detail, but presumably is very similar to that of Northern Emerald-Toucanet (Aulacorhynchus prasinus). Primarily forages in the midstory and canopy, although occasionally descends to the ground. Takes food with reaches and gleans, from a perch.
There is no information on territoriality or home range size for Southern Emerald-Toucanet.
Little information; presumably Southern Emerald-Toucanet is at least socially monogamous.
Social and interspecific behavior
Southern Emerald-Toucanet is gregarious, and frequently is encountered in small groups.
Predators probably include a wide variety of bird-eating raptors (see Northern Emerald-Toucanet Aulacorhynchus prasinus), but apparently no observations are reported of predation on Southern Emerald-Toucanet.