For A Crow's Nest
We keep a regular list of bird visitors to our garden for the BTO which means I'm always checking the species to note them down. When I saw a dark bird in the tree I had to watch it long enough to see whether it was a rook or a crow. That's when I noticed that it was breaking off a twig!
Well, it must have know it was growing there for it to use, it is a Birds; Cherry, after all.