Genus Threskiornis is a group of birds comprising of fifteen species in the family Threskiornithidae. These birds are commonly known as ibises, which are medium to large-sized wading birds. Ibises are distributed across different continents, from North and South America to Africa, Europe, Asia, and Australia. The term 'Threskiornis' is derived from Greek, which means 'religious bird'. Synonyms of Genus Threskiornis include the following: Pseudibis, Geronticus, Lophotibis, Nipponia, Eudocimus, Platalea, Tantalus, and Bostrychia.