The bakery in Headington, Oxford has reported problems with pigeons flying through the front door and across the shop floor helping themselves to food.

BBC: Oxford pigeons prove a pest for Greggs shop staff

Watching economists and media analysts react to breaking economic news is a bit like looking at a flock of pigeons flying over the New York skyline.

FORBES: Flying Blind Into The Double-Dip

But his rendering of Audubon's encounter with billions of now-extinct passenger pigeons flying wingtip-to-wingtip across the Kentucky sky for three whole days is magical.

ECONOMIST: John James Audubon

However, there are thousands of birds in a big race, so losing 75% of them in some events is noteworthy, even if many people consider pigeons to be no better than flying rats.

BBC: Is pigeon racing cruel?