Kenn Writes: Some bird painters can put down just a few lines on canvas or paper and then start painting. I respect that, but it doesn't work for me; I have to have a detailed idea of where things are going before I start to lay in any color. I recently started a portrait of an immature Great Black Hawk, and the basic drawing evolved over a couple of days. On the left here is the subfinal drawing. After putting it aside for a while, I decided to change the position of the head, make the bill a little thicker, and make a few other adjustments. I'll probably make more changes in the process of painting, but at least the foundation is set in advance.