A couple of years ago, as we walked up to the site where Hereford Castle was once to be found, I was amazed to hear a young teenager say to her companions, "Look, there are small creatures in the trees!" They were, of course, grey squirrels, the most common mammal (and in most places the only mammal) to be seen in the trees of the British Isles. I just couldn't understand how the teenager had reached the age she had without being able to identify the grey squirrel.
photo © T. Boughen Camera: Lumix FZ1000 2
