Author Luke Taylor, who describes himself as 'an Alfred Russell Wallace for our times', writes a detailed account of our city's pigeon population. Sections include pigeon anatomy (a typical bird has 1.6 feet), diet (a rise in pigeon cannibalism is attributed to the birds' growing proclivity for fried chicken), behaviour (including a superb pigeon population density map), pigeons in society (and how to monetize pigeons), and the future of pigeons (bionic eyes and extraterrestrial colonisation).
It's all backed up with unimpeachable scientific analysis, and state-of-the-art graphics. Do go read.
Fans of online Columbidae should also check out the long-running blog by Brian the Pigeon.