Swallowtail Butterfly Caterpillar...

Taken today at Hickling Broad. It made my day to see these caterpillars. I couldn't find them at first though so the lovely man in the VC showed me where they were. 
Before that I went on a 2 hour boat trip at Hickling Broad where 2 cranes & 7 spoonbills flew over. 

Great day :)