Threskiornis molucca, a species of wading bird of the ibis family, Threskiornithidae, which is widespread across much of Australia and has a predominantly white plumage with a bare, black head, long downcurved bill and black legs.

Theristicus melanopis, a South American bird in the family Threskiornithidae.

Eudocimus albus, a species of wading bird of the ibis family, Threskiornithidae, which occurs along the coastal areas of Gulf of Mexico as well as throughout the Caribbean and has a predominantly white plumage with pink facial skin, long downcurved bill and bright red-orange legs.

A species of ibis, Threskiornis spinicollis, of Australia and southern New Guinea, having stiff, spiky, straw-coloured feathers on the front of the neck.

plural of ibis

plural of ibisbill

Ibidorhyncha struthersii, a species of wading bird in the monotypic family Ibidorhynchidae, inhabiting the shingle riverbanks of the high plateau of Central Asia and the Himalayas.

A surname originating as a matronymic or as a patronymic.

plural of African sacred ibis

plural of Australian white ibis