An excellent collection of ideas and thoughts of how to construct a bird-house, what materials to use, having electricity vs. not having, insulation and so on.
I like especially the idea of planing ahead for an emergency. You hear it in the radio X horses were killed on the freeway when their staples caught fire and they ran off in panic. You won't hear about the chickens, ducks or other birds that died in accidents after being rescued from a burning coop, but i'm sure there are many.
