The plushcap (Catamblyrhynchus diadema) is a species of bird in the family Thraupidae. It is the only member of its genus Catamblyrhynchus. The plushcap is one of the most distinctive of all Neotropical passerines in terms of both its appearance and behavior. The plushcap (Catamblyrhynchus diadema) was in its own family until recently when it was grouped with the tanagers. It is very distinct both physically and in terms of behavior. The bill is broad and black. The body is a chestnut color with a bright golden-yellow forecrown. The forecrown is made up of stiff feathers. It has been speculated that these short, dense feathers are less susceptible to feather wear and more resistant to moisture than typical feathers. This may be an adaptation for its specialized feeding mode, in which it pr