I had to use three tools, the spot heal tool, the healing brush and the patch heal tool to repair 2 images.
First I used the spot heal tool to remove one of the birds from the image below.
BEFORE
AFTER
It's almost as if the bird falling from the top power line was never even there.
Then, I used the patch healing and healing brush tools to patch up holes in this wall and then some.
BEFORE
AFTER
You can tell this image has been tampered with by looking at the ghost bricks in the top of the archway, as well as the warped brickwork along the bottom of the wall. There are also some ghost bricks along the top of the wall.
I used the patch healing tool on a small part of the wall, but most of it was done using the healing brush tool.