bare-necked umbrellabird References bare-necked umbrellabird bird Ask Anything Homework Help Also known as: Cephalopterus glabricollis Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: umbrellabirdThe bare-necked umbrellabird (C. glabricollis) of Panama and Costa Rica has a short, round wattle, which is bright red and unfeathered. The latter two species are considered by some authorities to be subspecies of C. ornatus. Read MoreThe bare-necked umbrellabird (C. glabricollis) of Panama and Costa Rica has a short, round wattle, which is bright red and unfeathered. The latter two species are considered by some authorities to be subspecies of C. ornatus. Read More