I think only birds look well stuffed because... Well, because they're kind of passive to begin with.
8 seconds sound clip from the Psycho (1960) movie soundboard.
You can hear this line at 00:36:16 in the Blu-ray version of the movie.
Quote context
[...]
- But I don't really know anything about birds.
- My hobby is stuffing things. You know, taxidermy.
- Some people even stuff dogs and cats, but, oh, I can't do that.
- I think only birds look well stuffed because... Well, because they're kind of passive to begin with.
- It's a strange hobby. Curious.
- And it's not as expensive as you'd think. It's cheap, really.
- You know, needles and thread, sawdust.
- The chemicals are the only thing that cost anything.
[...]