Milo only does this in one part of the house. I think it's grandpa. He's now meowing at it.

Update 10/18: Now our other kat is doing weird stuff in the same area. I'll try to upload the video of Gabby and the greeble.

They're everywhere!

They've gotten her tail!

Source - https://www.deviantart.com/pointy-eared-fiend/art/Demons-850645176

I was told you guys could have some specialized knowledge

a rare video of my anxious baby showing off her hunting skills (usually she waits until she thinks everyone's asleep)

In addition to hunting greebles and/or flies and moths, Jones specializes in playing fetch, wandering around through the house on patrol and trilling, and racing from his tower to my room sporadically.

Kitten realized blanket was swarming with greebles and decided to GTFOH