Is this an evidence of an animal? or does tree naturally do this?

Is this an evidence of an animal? or does tree naturally do this?

Observation - Is this an evidence of an animal? or does tree naturally do this? - UK and Ireland. Description: I think its a birch tree and bark has been peeled of about a metre up tree, could it be a mammel or bird doing this or is it natural?

I think its a birch tree and bark has been peeled of about a metre up tree, could it be a mammel or bird doing this or is it natural?