These rehabilitated barn owls literally start dancing the minute they hear Kesha’s Tik Tok.

via slonguei

As user mylittleparrot pointed out:

These owls are in the care of a trained rehabber. They are not being abused in the slightest. They are perfectly relaxed and contented (the third one is even dozing a little), well cared for and well treated.

Those are not chains, they are called “creances”, they are for the owls’ safety. As rehab birds they are no longer able to function in the wild and if they flew off, they wouldn’t survive because of whatever injuries they have been treated for.