What is the name of the long, curved claws found on the toes of birds that have grasping feet?

The long, curved claws found on the toes of birds with grasping feet are referred to as talons. This term specifically describes the strong, sharp claws that many birds of prey, such as eagles, hawks, and owls, possess. Talons are adapted for hunting and grasping, allowing these birds to catch and hold onto their prey effectively. Their curved shape enhances their gripping capability, making them essential for both securing food and perching on branches.

While the other terms might describe various types of claw structures or features in other animals, they do not convey the specific adaptation and functional significance that talons provide in birds. Thus, the specificity of the term "talon" accurately reflects the physical characteristics and ecological roles of these claws in grasping birds.