I feel like only a rich sophisticated bird could live in this house. Do the birds have to pay a down payment of 200 worms just to put down an offer? I could easily see the Bill Gates of birds in this home. http://www.harpersbizr.com/default.asp?dep
Remember Hugulkultur in creating raised beds. Since I like the higher beds, filling the bottom half with prunings and such will reduce amount of topsoil needed to fill bed.