One thing these overcast skies will do is drain all the color out of your color photographs so you have a black and white snapshot without even converting it in PhotoShop.
This an European Starling on a power line, a better snapshot to post than the one I took yesterday of the Turkey Vulture that sat on a light pole at the entrance of my townhouse cul de sac. Now that was an unusual sight as vultures generally don't venture into our urban area, but perhaps there was a dead deer nearby that enticed him over to my home (yuck). Plus, I think I've done the vultures to death - so to speak.
Anyway, if the sun was out you would see that his feathers are now a glossy brown with green and purplish iridescence. The white spots that he had back in January have long since worn off.