His aim is as bad as most blokes after too much cider.
Actually it might be a rat. Every single woodpecker hole in my boxes has gone for the hand-hold i.e. the thinnest bit. I've only had rats go through the floor. Not sure about yours though.
Wire netting will stop woodpeckers and probably deters rats enough.
My own preference is just to move to a safer winter apiary.
Yes I agree, Woodpeckers usually go for the handholds on hives and they always seem to manage to get through close to the brood. I cover my hives with old cherry nets, just as good as wire netting and take up less room than wire netting when they are taken off in the spring.
The hole in the board about 60mm away from the side indicates it is likely a 'pecker, to me. I suspect your cluster is this corner? It should be be easily ascertained by checking for cappings. Probable that a few flying bees attracted said attacker, rat-a-tat on the hive attracted a few more bees to come and get eaten, A search on the forum should yield enough info to deter them.