Nice overcast light also makes a high-contrast kingbird look better, although the cranked-up ISO needed to compensate when using a Dx sensor is the penalty. The first shot was taken when it was so dismal that I put the headlights "on" while driving. I would love to see what its like to shoot at ISO 4000 and still see a clean image, even after cropping.
Eastern Kingbird
(420mm f5.6)