We've been having fun watching the birds on our feeders lately. One blackbird took a while learning how to get to the fat ball: approaching it from various angles he failed to get a grip; then he hovered alongside it, grabbing a bite before he fell back onto the ground; finally he learnt to land on the fat ball itself, and was able to nibble away easily.
The collared doves and blue tits have also been avid feeders.
If you feed the birds, don't forget to clean the feeders regularly to prevent disease. See the RSPB website for more information.