Martha, the last passenger pigeon

Martha (c. 1885–September 1, 1914) was the last known living passenger pigeon; she was named "Martha" in honor of the first First Lady Martha Washington.
The passenger pigeon or wild pigeon (Ectopistes migratorius) is an extinct North American bird. Named after the French word passager for "passing by", it was once the most abundant bird in North America, and possibly the world. It accounted for more than a quarter of all birds in North America. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise. One flock in 1866 in southern Ontario was described as being 1 mi (1.5 km) wide and 300 mi (500 km) long, took 14 hours to pass, and held in excess of 3.5 billion birds. That number, if accurate, would likely represent a large fraction of the entire population at the time.
Links
Martha
Passenger pigeon
The passenger pigeon or wild pigeon (Ectopistes migratorius) is an extinct North American bird. Named after the French word passager for "passing by", it was once the most abundant bird in North America, and possibly the world. It accounted for more than a quarter of all birds in North America. The species lived in enormous migratory flocks until the early 20th century, when hunting and habitat destruction led to its demise. One flock in 1866 in southern Ontario was described as being 1 mi (1.5 km) wide and 300 mi (500 km) long, took 14 hours to pass, and held in excess of 3.5 billion birds. That number, if accurate, would likely represent a large fraction of the entire population at the time.
Links
Martha
Passenger pigeon