I've got a new friend!

Because he has a red breast and lives in our garden in Scotland, I call him Rory.

Today he's been so very interested in the stuff I've got out of the lawn, scarifying. So here he is, looking down at the pile of moss, etc. that I'm putting into a bag.

Earlier I caught him clinging to this wall. I see loads of Sparrows doing it on the house walls. Why? Are they looking for inverts, or what?