How to make a cat house for outside cats to stay warm this winter
Catio - how great is this?
Winter Cat Care: Baby, It's Cold Outside! | ASPCA Professional
Outside/stray cat house for winter!!!!
I think this "Cat Cottage" looks a lot like a giant birdhouse, which is rather perverse if you think about it. LOL
Build you own Low-Cost Outside Cat Shelter | Kimberly Crest Veterinary Hospital
An outdoor dog/cat house heater.
Outdoor kitty play space 17 custom Colors! Cages By Design.
This little cat house is soooo adorable. The only downfall is that it is not totally enclosed so the kitties still can roam freely outside which, for me, is a no-no.
DIY insulated winter cat shelter. I think this one has the best instructions.