I work for B&Q in Plymouth, and several times when I'm drop & filling in the old greenhouse, he/she comes in to 'help'. A few people thought it was a realistic tree decoration until it flew down to eat the spilled seed. Our store's been open for about 8 yrs now, and we've had robins from the start. Originally they came into the store to perch on the artificial trees, and used to fly down to the coffee shop to pick up crumbs while people were eating. Then they were beginning to build nests in the trollies of plants we were unloading. This year there have been 2 in the greenhouse, helping themselves to spilt seed, and going down to the house plants to roost.Between them and the blackbird that visits inside the store, I think they've got the right idea..they can be warm, dry and fed, with no one bothering them.