Carollia brevicauda occurs across parts of Central and South America. A study in the Colombian Andes followed one colony that used an artificial refuge.
Specimens examined from Peru and Ecuador had dense, long dorsal fur with four color bands; juveniles were grayer.
One colony studied in the northeastern Colombian Andes used an artificial refuge. Females showed greater roost fidelity than males, which the authors suggested could indicate a maternity refuge.
An extinction-risk assessment has not been added yet.