(Common) Magpie
Pica pica

Another common garden and town visitor. Magpies were once scarce and were only seen in the countryside, but now can be seen almost anywhere. The first two photos are adults, the third a juvenile, as can be told from the short tail and beak.
 

  

1: River Kelvin, Glasgow, 09/06/2005.
2: Shepheard's Meadows, Sandhurst, 06/06/2006.
3: Kelvingrove Park, Glasgow, 01/05/2005.