It’s empty in here!
The birds love these XXL fat balls and they are great if you don't have time to replenish each day. It's also good that they are available in a 10 pack, and not the usual double pack.
This is the first time we used the XXL fat balls. The ravens often nick the smaller fat balls so we decided to buy the large ones. The birds seem to like them just as much and the ravens can't nick them so easily.