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The Cathartiformes / k ə ˈ θ ɑːr t ɪ f ɔːr m iː z / was a former order of scavenging birds which included the New World vultures and the now-extinct Teratornithidae. [1] Unlike many Old World vultures , this group of birds lack talons and musculature in their feet suitable to seize prey.
Among them is the family Cathartidae (New World vultures) which the American Ornithological Society (AOS), the Clements taxonomy, and BirdLife International's Handbook of the Birds of the World place in its own order, Cathartiformes.
The DNA-based proposal and the NACC and IOC classifications include the New World vultures in the Accipitriformes, [2] [6] but the SACC classifies the New World vultures as a separate order, the Cathartiformes [7] which has been adopted here. The placement of the New World vultures has been unclear since the early 1990s.
This analysis argues that New World vultures should either be a part of a new order Accipitriformes [19] or part of an order (Cathartiformes) closely related to, but distinct from, other birds of prey. [18] New World vultures are a sister group to Accipitriformes, [18] a group consisting of Accipitridae, the osprey and secretarybird. [20]
The DNA-based proposal and the NACC and IOC classifications include the New World vultures in the Accipitriformes, [7] [11] while the SACC classifies the New World vultures as a separate order, the Cathartiformes. When Cathartiformes is considered a separate order, sister to Accipitriformes, Accipitriformes sensu lato is called Accipitrimorphae.
Hieraves is a clade of telluravian birds named by Wu et al. (2024) that includes the orders Strigiformes (owls) and Accipitriformes (hawks and their relatives). [1] The Cathartidae (New World vultures) are usually included in Accipitriformes, [2] but some authors treat them as a third order Cathartiformes in the Hieraves.
More recent authorities maintained their overall position in the order Falconiformes along with the Old World vultures [15] or place them in their own order, Cathartiformes. [16] However, recent genetic studies indicate that neither New World nor Old World vultures are close to falcons, nor are New World vultures close to storks. [17]
Order: Cathartiformes Family: Cathartidae The New World vultures are not closely related to Old World vultures, but superficially resemble them because of convergent evolution . Like the Old World vultures, they are scavengers, however, unlike Old World vultures, which find carcasses by sight, New World vultures have a good sense of smell with ...