I am rearing chicks for the table and they need to be kept warm (only 2 weeks old) so I have put them in a run with one of my plant propagators in the greenhouse to keep them warm at night though whilst they are still so small.
The chicks themselves are hot little things and between them they keep the frost away!
(http://www.thevga.co.uk/misc/chick_power1.jpg)
I work from home so I can open up the greenhouse on the odd sunny day - don't want to cook them too early ;D
(http://www.thevga.co.uk/misc/chick_power2.jpg)
they look lovely and cosy ;D
Interesting idea! And doggy certainly looks interested in a future meal.