Zebra Finches are loud and boisterous singers. Their call can be a loud "beep", "meep", "oi!" or "a-ha!", sounding something like a toy trumpet or the buttons on a phone being pushed. Their song is a few small beeps, leading up to a rhythmic song of varying complexity in males. Each male's song is different, although birds of the same bloodline will exhibit similarities, and all finches will overlay their own uniqueness onto a common rhythmic framework. Fathers pass on their songs to their sons with little variation.
