Earlier in my LE days I was called to handle a "bird" complaint. When I got there I found an owl standing in front of the complainants house. Long story short - there was a small foot pursuit (the owl could not fly) that resulted in me capturing the little critter. I took him to a local nature rescue center and was told it was very likely the bird was "domesticated" (e.g. had been living in someone's house). They suspected the "owner" had found it as a chick and raised it. The only trouble - the owl is protected and whomever had it was likely to face some serious federal consquences (we never located the "owner")...

My favorite recollection of the encounter. It was the first time I chased something that was looking me square in the eye the whole time it was running away (the owl had it's head completely swiveled backwards looking at me). It was freaky!