Последние добавленные видео:
north-america-bird-population-decline
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5 лет назад
641 5 лет назад 6:31Bird Population Decline Across North America | Connecting Point | Nov. 14, 2019
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5 лет назад
2046 5 лет назад 2:28New study reveals massive decline in North American bird population
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5 лет назад
437 5 лет назад 1:21Bird populations in North America have declined by 2.9 billion since 1970, study finds
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4 месяца назад
1207 4 месяца назад 2:05US Bird Population Declining Rapidly Due To Habitat Loss | World News | WION
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5 лет назад
100360 5 лет назад 5:06North America's 3 Billion Lost Birds | SciShow News
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5 лет назад
7580 5 лет назад 1:52"Staggering" decline in America's bird population
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5 лет назад
4818 5 лет назад 7:10Conserving North America's bird populations
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5 лет назад
530 5 лет назад 2:43Tennessee birds part of North American population decline
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5 лет назад
3588 5 лет назад 1:462.9 billion birds have disappeared across North America since 1970 - TomoNews
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3 года назад
1172 3 года назад 2:25The global bird population, declining rapidly.
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5 лет назад
10 5 лет назад 2:19North American bird population has dropped by 3 billion since 1970, study reveals
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1 месяц назад
877 1 месяц назад 2:14Decline in bird populations create concerns for researchers, bird watchers
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5 лет назад
7201 5 лет назад 1:54North America has lost nearly 30 percent of its bird population in the last 50 years
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4 года назад
36734 4 года назад 5:22The Most Destructive Birds in North America
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2 года назад
614 2 года назад 6:26Why bird populations are declining? [CC]
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9 лет назад
3152 9 лет назад 2:14A third of birds in North America threatened with extinction
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5 лет назад
46 5 лет назад 1:48What's causing Helena's bird population decline?
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5 лет назад
4471 5 лет назад 3:09North America has lost 3 billion birds in the last 50 years
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2 года назад
15575 2 года назад 7:112 out of 3 North American bird species face extinction. How we can save them