The Red and Yellow Goldens and Amherst work the best in small quarters. They don't have obnoxious noises, so don't attract attention from the neighbors. People house them in a 4x4 pens with limited success. Obviously the bigger the pens the better. I'll get pics of the Yellows and Amherst on here. The amherst can be a bit more nervous than the GOldens. I think the Yellow goldens are the kindest birds. I have some that follow me around like a pet dog outside, and they stay even.