This bird sings the iPhone ringtone when it gets upset

A sweet cockatiel knows exactly how to get its owner's attention: imitate an iPhone.
Vimeo user Ben Pluimer posted a video to his page on Monday featuring his friend's pet bird perfectly recreating that classic iPhone default ringtone. 
"When my friend's cockatiel gets upset, it sings an Apple ringtone," he wrote in the clip. 
According to Pluimer, the bird usually gets upset when its humans are tying their shoes and are getting ready to leave the house. 
At one point the real Ap