I was watching an episode of
Stargate SG-1 whilst eating my breakfast, and briefly one of the characters (Hathor) held up a squealing Goa'uld.
Talisker was fascinated by this, and actually wandered over to the TV to inspect it. That's the first time ever I've seen him interested in anything on there, even when it has been small rodents and birds. I've assumed that the colour spectrum his eyes respond to isn't well matched by colour TV, so they don't look correct to him. The sound, on the other hand, is clearly quite compatible with his hearing. He's stayed around, I guess on the off chance that it returns!
I guess the sounds effects bod used the sounds of some animal to provide the squealing, and whatever it was, Tali was interested in hunting it! Actually he'd probably be willing to chase pretty much anything After several weeks stuck indoors he is getting really pissed off with me!