Without certainty, I think this is a carrion crow. It's certainly not an adult raven. My reasons are: on adult ravens the horizontal hairs on the upper mandible tend to extend around 2/3rds of the way down the bill rather than less than half [here: viz Macauley images]. The bill of an adult raven is deeper and more parallel sided, especially the lower mandible [most obvious curve is around last third of upper mandible]. The bill here appears quite "delicate" [to me] and both mandibles converge smoothly to a point. I see little evidence of the raven's "beard" here. Finally, Macauley images suggest carrion crow wings often fall short of the tail tip, whereas raven's meet or exceed it. As far as I can tell, the OP image matches the first pattern.
These 2 can be really difficult without a clear size comparison as here. The posts above demonstrate this... ...Happy to be proved wrong...