He compares her song to the sweet notes of the nightingale and the cuckoo, both birds that sing in romantic surroundings. The song of the nightingale is a very welcome sound to the tired travellers as it signifies that they are approaching an oasis. The song of the cuckoo bird brings joy to the listeners as it is a harbinger of spring after the long, cold winter. The song of the reaper arouses the same feelings of pleasure and joy in the poet’s heart. It also lends a feeling of romance to the poem.