"Pigeon: It's what's for dinner."
That might sound strange to us, but it could have been uttered by our great-grandparents. Baked into pot pies, stewed, fried or salted, the passenger pigeon was a staple for many North Americans.
But by 1914, only one was left: Martha.
Named after Martha Washington, she lived a long life at the Cincinnati Zoo until 1914. The bird, now on exhibit at the Smithsonian Museum of Natural History, was a celebrity.