Movies are full of pigeons. They're there to make parks look more authentic; they jump up at the moment of maximum tension when someone is creeping around an attic or bell-tower; they are the victims when a hawk needs to kill a weaker bird to remind the audience that nature is harsh and there are predators among us; feeding pigeons while wearing ratty clothes and gloves with the fingers cut off is a sure sign that a bit player is a sad, semi-deranged street person ... or an undercover cop.
And yet the pigeon is never the star. (And why do bats get so much glory?)
How would one adapt a book about pigeons for the big screen?
Semi-related trivia question of the day: how many pigeon-wranglers worked on the film Home Alone 2: Lost in New York?