Buteo leucorrhous, a species of bird of prey in the Accipitridae family found in South America.

Buteo polyosoma, a species of hawk.

(Buteo brachyurus), an American bird of prey in the family Accipitridae

Buteo platypterus, a small hawk of the Buteo genus.

Buteo ventralis, a species of bird of prey in the Accipitridae family, found in southern Argentina and Chile

Buteo albicaudatus, a species of hawk found in tropical or subtropical environments across the Americas

plural of white-throated hawk

Buteo albigula, a species of hawk living in the Andes mountains of South America

plural of rufous-tailed hawk

(physics) A hypothetical state of the universe prior to the Planck epoch, in which time did not exist, only space.