Chondrohierax

A very small genus of birds of prey in the hawk and eagle family (Accipitridae). It currently has just two species: the widespread hook-billed kite, found from south Texas through Mexico, Central America and much of tropical South America, and the Cuban kite, which survives only in a tiny area of eastern Cuba. For a long time, the Cuban bird was treated as just a subspecies of hook-billed kite, but genetic studies showed it’s been isolated for roughly 400,000–1.5 million years, enough time to evolve into a distinct species.

What really unites Chondrohierax is diet and beak design. Both species are snail specialists. Their bills are unusually thick, short and deeply hooked, almost parrot-like rather than hawk-like, adapted to punch into snail shells and pry out the soft body. Hook-billed kites across the Americas feed heavily on arboreal and terrestrial snails, and populations in different regions even show bill-shape variation that tracks the local snail species they eat. The Cuban kite pushes this specialization even further, focusing on large tree snails and slugs in humid forest. In both cases, you can often find the birds by looking for little piles of broken snail shells under favourite perches – their dinner leftovers.

Ecologically, Chondrohierax kites are quiet, forest-dwelling raptors, often described as sluggish or shy compared with more typical hawks. They like wooded river edges, swampy or evergreen forest, and dense second growth where snails are abundant. They spend long periods perched inside leafy canopy and make short, twisting flights rather than long soaring journeys. In parts of their range, people have noted they’re surprisingly tame, tolerating close approach, which sadly has made the Cuban kite an easy target for shooters who mistake it for a chicken-hunter.