The grass finches , the vireos , the wrens , and the linnets have joined their voices to the chorus , and the bobolinks are loudest in their song .

小鸣禽草雀、绿鹃、鹪鹩、红雀等都加入了这个合唱大家庭，其中食米鸟的鸣叫声是最嘹亮的。