wood
This is simply because wood is a natural substance and birds are used to wood. After all, you wouldn't want to have your house made of plastic.
box
containers made of cardboard or wood are a wooden box, wooden crate, cardboard storage box. there are loads more but it would take a wile to list them.
Bird seed is not appropriate to use for a ferrets litter box. Use litter made specifically for ferrets
The first link is a complete list of birds that live in man-made bird HOUSES. The second link is a great list of different bird species and the type of bird BOX they prefer.
carton,box,container
carton,box,container
MDF (Compressed wood)-that is the Brillo bos made by Anfy Warhol
I believe the pyxis box was generally made of either, stone, wood, or ceramics depending on the creator.
njh
A wooden box with a button and wire