| polyborus | (n) a genus of Falconidae, Syn. genus Polyborus |
| audubon's caracara | (n) widespread from southern United States to Central America; rusty black with black-and-white breast and tail, Syn. Polyborus cheriway audubonii |
| carancha | (n) South American caracara, Syn. Polyborus plancus |