Birch forest Sparrow

Sparrows would be a ambeit mob that would fly it wouldnt have a use, you could find sparrow nests on birch trees, they could give sparrow feathers once a baby sparrow in anest grows to a young sparrow and when a young sparrow becomes a adult sparrow (they would be bred with seeds) the feathers would make a sparrow feather hat granting some sort of effect maybe, they would really add to the birch forest