In periods of cold weather they can do a lot of damage to live colonies, it seems that the disturbance can kill the colony. Here though they or it have attacked empty (of bees) boxes, what they were looking for I don't know. Perhaps they had a go a t the live colonies but the incumbents persuaded them to move on.
Someone told me that the noise you here from wood peckers in the spring is to attract mates rather than find food, perhaps they have been testing out the acoustic qualities of my hives.
Here another classic woodpecker damage were they attempt to enlarge the entrance, to get at the inside, an empty box again though.
The damage was done in Jan and since then no further problem, presumably they didn't find anything worthwhile.
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