It would be interesting to see in color, but I don't know if it needs it. I think you have obviously taken it further than just a sketch; the lines are definite(I know what I mean by this, not sure anyone else will) and all the birds stand out once one peruses the scene. It has that finished feel to it, really.
Could you do one a bit similar to this one but in color, a little smaller or perhaps doing one section of the drawing?
I'm just curious to see what it would look like.
It is a beautiful piece, no matter.
Woody, all I have ever done in oil is landscapes. One of these days I will sit down and do a bird, wow, it sounds like fun...painting. I'll get to it sooner rather than later!