The Swallowtail is Britain's largest butterfly, occuring on several Norfolk Broads where it is usually to be seen on the wing from mid May to early July, and in warm summers again in smaller numbers in August.

 

All pictures are Copyright of Richard Revels FRPS

Swallowtail flying to Thistle. Hight speed flash was used to freeze this butterfly in flight.

 

Britain's largest butterfly feeding on Ragged Robin.

 

Swallowtail on Marsh Thistle. Upton Fen NR. June 2009.

 

Marsh Thistles are a favourite nectaring flower for the Swallowtail. Upton Broad NR. June 2009.