It's an iron deer, a lawn ornament.
6 seconds sound clip from the X Minus 1 - Mars is Heaven by Ray Bradbury classic radio dramaseries.
You can hear this line at 00:10:26 in the radio play.
Quote context
[...]
- I hit it Captain! Some kind of wild animal, I hit it. I can see the traces, but it's still standing.
- Come on, Horst. Doctor where are you?
- Up ahead, admiring the wild animal.
- Careful, Horst. Wait for us.
- It's an iron deer, a lawn ornament.
- Well that, that's impossible.
- Look around, the mist's lifting.
- Hey, Captain, look there. It's a house! A regular old fashion house.
[...]