Although the color is not the best, I think that these are blue birds. The one in the back, seems to be a young one, as it was constantly sitting there with it's mouth open, waiting for the one up front to go down on the suet and then bring it back. The one up front was waiting on another bird to get off of the suet, before it went down, at this point.
Yes, they look very much like the bluebirds here - just fairly young and haven't gotten their full deeper color I'm guessing. Like the composition of this and the lighting. Fav
