Could be for a variety of reasons, but grasping a tree bark or the seed itself could be some of them.
Could be evolutionarily vestigial as well, like wings on ostriches.
to have sex
Generally, only birds that live on or near the water have webbed feet to aid in swimming. Birds of prey have individual "toes" or claws (talons) to grip their prey.
Claws becuz they need claws to get there food not nails
It uses its spear-like bill/beak. And i assume it has claws on its feet... All birds flap their wings and ruffle their feathers to confuse their prey.
The have claws because the need them to eat there food
NOTA. The aren't fish, so they don't have scales, they aren't birds, so they don't have wings, they can't go on land, so they have no claws, they aren't mammals, so they don't have fur, and since they don't really need to camoflauge themselves most have no need for stripes.
Assuming the dogs have four feet and birds two, you need 15 dogs (60 feet) and 1 bird (2 feet) giving a total of 16 birds and dogs and 62 feet. None. Dogs have paws, not feet. Also, birds have claws, not feet.
NO NO NO NO NO NO NO NO! They NEED their claws!
Kittens do not have talons, they have claws. There is a major difference between talons and claws. Just like there is a difference between claws and nails. Talons are found on birds and reptiles, not mammals such as felines.Kittens use their claws for:Defending themselves or their siblingsCatching foodPreventing them from fallingPlayingAttackingItching / removing ticksHelp stretch their muscles in exercisesTerritory marking (scratching things, which leaves visible marks as well as a scent from their feet to mark their territoryBalance (just like humans use their thumbs for balance, kittens need claws for the same purpose. Trimming claws too much is known to make cats unsteady on their feet)
Giraffes have good eyesight and hearing to avoid predators (usually lions) from eating them. Most lions will avoid giraffes as their long legs and hooves can be lethal to an attacking lion. The giraffe is a hoofed animal and doesn't have claws. It is an even-toed ungulate mammal.
borneo pygmy elephants do not have claws but dohave teeth, they would have no need for claws but do require big molars for crushing leaves.
Possums are arboreal (tree-dwelling) creatures, so they need sharp, strong claws for climbing trees. The claws are also their main method of defence against attack from predators.