Males are able to mimic songs where females can use that to discover their mate. However, there are some cases where females don't use songs to choose their mate but they use either male characteristics like plumages or they can have a shortage of options with song mimicry. Paradise whydahs are brood parasites.
Male birds can imitate songs for mate selection, while some females prefer alternative criteria such as plumage traits or lack suitable song mimics. This behavior is similar to that observed in paradise whydahs, which are brood parasites.