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Omnivorous ravens have beaks suited to a generalist diet: sturdy but not too stout, pointed at the tip, able to handle just about anything.
Photo: Joel SartoreThe Java sparrow wears the requisite seed-crushing beak.
Photo: Joel SartoreRecent studies have shown that toucans such as the chestnut-mandibled can control blood flow to their enormous beaks, an effective way of dissipating body heat on blazing tropical days.
Photo: Joel SartoreLong-beaked sandpipers often probe for hidden food, while short-beaked ones usually pick at visible items. The red knot (pictured here), with a bill of intermediate length, does both while feasting on horseshoe crab eggs during its spring stopover along Delaware Bay. The overfishing of horseshoe crabs is imperiling red knots.
Photo: Joel SartoreLa página que intenta visitar sólo está disponible en inglés. ¡Disculpa!
The page you are about to visit is currently only available in English. Sorry!