Holes in a tree, it has to be a woodpecker. Right? Possibly yes:-
What else can it be? Possibly no:-
We haven’t heard a woodpecker drumming this close to the house, normally the sounds seems to come from the opposite side of the valley;
The holes are very uniform. After a little online research, my conclusion is Yes. In fact the uniformity of holes is a clear indication of woodpeckers, though our holes are in fact rather small. I just wish we’d seen them!

5 to remember
bastante – rather/quite
una indicación – an indication
normalmente – normally
igual – uniform/the same/regular
mi conclusión – my conclusion