These birds have the most complicated vocal muscles out of all the songbirds. With their ability, they can mimic an innumerable range of sounds both natural and artificial. Camera shutters, car alarms, barking dogs, human voices, chainsaws – the list goes on. Supposedly, the male lyrebirds will try to incorporate a whole host of sounds into their songs as a way to attract females. So imagine a male lyrebird trying to attract a female by barking like a dog!