Accipitriformes
Order of birds
Accipitriformes
The Accipitriformes (; from Latin accipiter 'hawk' and formes 'having the form of') are an order of birds that includes most of the diurnal birds of prey, including hawks, eagles, Old World vultures, kites, ospreys and secretary birds, but not falcons or seriemas. The generally nocturnal owls, also considered birds of prey, are a separate order from the accipitriforms. Historically, accipitriforms were grouped with falcons in the broadly defined order Falconiformes. However, molecular phylogenetic studies, including Hackett et al. (2008), showed that this traditional grouping was polyphyletic: falcons are more closely related to parrots and passerines than to accipitriforms. Modern ornithological checklists recognize Accipitriformes and Falconiformes as separate orders, with Falconiformes placed immediately before Psittaciformes in taxonomic sequence. In Hackett et al. (2008), the clade uniting New World vultures with other accipitriform birds received relatively weak support. Citing...
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