sentences:  The birds are also used at airports, hotels, solar panel arrays, retailers, manufacturing and construction sites, railway stations,
  
  shopping centres and office blocks across the UK, Europe and the USA.People for the Ethical Treatment of Animals (PETA) in the UK have applauded the initiative as a means to get away from attempts to poison and starve pigeons, citing the eradication program in London under Mayor Ken Livingstone.In 2004 a documentary was aired on the Discovery Channel featuring Robop and the R