Fake owls, Transport for London and the Wembley epilogue

I never got round to writing up my interest in fake owls as the story petered out, but someone else has stumbled on my Freedom of Information request:

Dear Transport for London,

For each year for the last 5 years, can you please let me know how many dummy owls or other birds have been purchased by Transport for London for scaring off pigeons, and what locations the purchases were for.

Yours faithfully,

Mark Pack

Read their blog here (and see the comments for some extra information from myself).