This is the best picture of a few photos and they were all from this tree. We have narrowed it down to Rusty, but because it was not with any other birds, we're not absolutely certain. Last year, several came with a flock of Red-wingeds and Grackles.
Thank you for your help.
Resin Northumberland, United Kingdom(Zone 9a) Apr 05, 2013
Seems likely, but difficult to be 100% sure with what's visible here.