Weaver birds usually make their nest when they're looking for a mate. So in their juvenile years.
The Weaver Bird.
sociable weaver
The Weaver builds a nest out of grasses, with the entrance at the bottom.
The weaver bird is an intelligent bird.
Swallows? Swallows?
The weaver bird is a small bird native to Africa that is related to finches. Some weaver birds build rather large, elaborately woven nests (thus the name 'weaver bird') while others nest parasitically meaning they lay their eggs in the nests of other birds and the other birds raise the weaver bird chicks. Weaver birds are normally gregarious and they nest together in colonies.
The bird that uses vines to stitch its nest together is the tailorbird. It collects long fibers, such as plant material or cotton, and sews the edges of its nest with them to hold it together. This behavior helps the nest withstand strong winds and predators.
When bird find mate they will build a nest
it depends how old the bird is if the bird is young it probably won't know how to make a nest. if the bird is older it will probably make a nest.
I have never heard of a bird making a nest in a bird bath. I believe they only make nests in trees. I wouldn't worry about a bird making a nest in your bird bath. It's more used as a decoration.
what is the name of a bird that makes its nest sewing with grass
Tailorbird