Leptodon

 Leptodon is a genus of birds of prey. Its two members are similar, with a grey head, black upperparts and white underparts. They are: Grey-headed Kite is a widespread species, breeding from eastern Mexico and Trinidad south to Peru, Bolivia and northern Argentina. However, White-collared Kite is restricted to northeastern Brazil, and is classified as Critically Endangered.
 * Grey-headed Kite, Leptodon cayanensis
 * White-collared Kite, Leptodon forbesi