Notharchus
Notharchus is a genus of puffbird in the Bucconidae family.
The genus was introduced by the German ornithologists Jean Cabanis and Ferdinand Heine in 1863. The type species was subsequently designated as the white-necked puffbird by the English zoologist Philip Sclater in 1882. The generic name combines the Ancient Greek nōthēs meaning "sluggish" and arkhos meaning "leader" or "chief".
The genus contains six species:
| Image | Scientific name | Common Name | Distribution |
| Notharchus hyperrhynchus | White-necked puffbird | northern Colombia, northern Venezuela, and the western and southern Amazon Basin | |
| Notharchus macrorhynchos | Guianan puffbird | north-eastern South America, in far eastern Venezuela, north-eastern Brazil, Guyana, Suriname and French Guiana | |
| Notharchus ordii | Brown-banded puffbird | Bolivia, Brazil, and Peru, and in the Orinoco River region of Venezuela | |
| Notharchus pectoralis | Black-breasted puffbird | Colombia, Ecuador, and Panama. | |
| Notharchus swainsoni | Buff-bellied puffbird | Argentina, Brazil, and Paraguay | |
| Notharchus tectus | Pied puffbird | Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela. |