passenger pigeon

1 The recording that accompanies the passenger pigeon is a facsimile—a reconstructed sound created by Timothy Barksdale of Birdman Productions.

2 An avid birdwatcher, Roosevelt also mourned the fact that hunting and habitat loss had killed some 3 billion passenger pigeons in the 19th century alone, driving the species to extinction.

3 As a naturalist, Hornaday had witnessed the extinction of other victims of American progress: the passenger pigeon, the Audubon bighorn sheep, and the heath hen.

4 But think of all those other remarkable species that became extinct before captive breeding programs could be established--think of the passenger pigeon, the Carolina parakeet, the Tasmanian wolf, and that symbol of extinction, the dodo.

5 Using the passenger pigeon as a thought experiment, another paper in the same issue looks at the fears and excitement of leaders in the field of genomics.

6 The most vivid accounts of squirrel irruptions date to a time when old growth forests had yet to be logged, when bison roamed the West and flocks of passenger pigeons darkened the skies.

7 Of course, there is a sizable camp of thylacine enthusiasts who believe that the animals never really went the way of the passenger pigeon and dodo, and instead live on in areas of mainland Australia, action planning and decision making blissfully unmolested by humans.

8 From present-day specimens like alligators to extinct passenger pigeons and endangered species like ocelots, this exhibit is truly unique to the Lone Star State.

9 It was extinction by dilution, and to the ornithologists it was just as tragic as the more dramatic demise of the passenger pigeon or the Carolina parakeet.

对鸟类学家来说，这和北美候鸽或卡罗来纳长尾小鹦鹉大批大批地死亡同样悲惨。

10 The passenger pigeon is extinct.

旅鸽已绝种.

1 鸠鸽科

pigeon dove kereru bleeding heart mourning dove green pigeon imperial pigeon collared dove stock dove fruit dove turtle dove wood pigeon ground dove rock dove crowned pigeon