All standard Orpington varieties of large fowl are from 81/2- 10 lbs and the standard bantams are 34-38 ounces, just over 2 lbs. Just imagine a bird at roughly 1/4 the size of a large fowl Orp. A large fowl Orpington bred to the standard, is gonna be cramped in something that low, what are the other dimensions?

The dimension of the tractor is 2' tall x 4' wide and 8' long.

Fancifowl, the Standard Orpington is more than twice the size of a Bantam? If that's the case, I'll have to settle with the Bantam. But I really want the Standard Orpington, so I was wondering if I could just revise the tractor by simply adding another level to it. Rather than it being a 2' tall x 4 x 8 it will become 4' tall x 4 x 8.

Fancifowl, as a nesting area, can I use a dog house?