I came across this rather sorry looking pigeon earlier on whilst taking the dog out. The way it’s chest has been plucked suggests the likely culprit is one of the local Sparrowhawks.
We were intrigued to see the rings on both legs surely the local ringing group hadn’t started ringing feral pigeons?
After noting the details and entering them into Google it quickly became clear the letters NWHU were for the North West Homing Union. The number on the red ring turned out to be the owners’s phone number.