Ever heard any animal make a sound that resembles the melody of a human song?
For me, none yet :(
My top contendor would be the Oriental Magpie Robin, a prolific singer. I will constantly be on the lookout for any human rythms (I mean, just imagine a Magpie robin whistling the tune of I’m Blue!)
We used to have mocking birds around us many years ago. They are known to incorporate human generated sounds into their songs, such as car alarms, etc. Once, one of them picked up the refrain of a popular song, “Chaka Khan Chaka Khan Chaka Khan”. At first it was perplexing to hear just the snippet of song, then when I realized the source, it was pretty amusing.
On the Big Island of Hawaii, there is a point on the Saddle Road called Kipuka 21. The 'apapane there sang the famous five notes from “Close Encounters of the Third Kind.” Since `apapane have regionally variable songs, none of those I heard anywhere else sang that.