No. Take it to a vet.
The other leg gets tired
The birds that they catch they inject a micro chip in there upper left leg
By refraining the leg from moving. Typically in a cast but with more severe cases pins into the bone of the leg.
Many birds are ringed by many organisations to enable scientific study. Each ring has a number that identifies the birds - and hence where it was ringed. Most birds are ringed when young. Males are ringed on the right leg, females on the left.
small cheeping birds
Many small predators are hunting grasshoppers. This can be other insects. It can be small mammals. A majority of grasshoppers are hunted and get eaten by birds. The grasshopper looses one of its legs often so that it can escape a predator. A bird having a firm hold of a leg will often be satisfied with only the leg and the insect can hop around a little bit more with the remaining one.
because the birds are small but the birds
The ring around your bird's leg might be a tag that identifies the bird as belonging to a certain person or group. In some cases, birds like pigeons are raced for prizes and these birds are tagged with rings around their legs.
All birds preen their feathers. They do it to groom and repair the feathers.
yes, they have many small birds that belong to that specific habitat, but it is possible to find bigger birds such as hawks, that are feeding on the small birds
Pigeon as in Pigeon Post A note was written on a small piece of paper and put in a small canister strapped to the bird's leg.
only the boy birds. They are called spurs they are half way up there leg and there is one one each leg. they are used for defending there hens from other boy birds.