Tyne Bridge Kittiwake colony

English: Images of the Kittiwake colony on the Tyne Bridge.

• 
  North tower, west/south side
  31 March 2004
• 
  East side of the north tower
  11 April 2008
• 
  north tower
  23 June 2004
• 
  North tower/main span join
  29 June 2008
• 
  North tower
  24 May 2012