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\u2219The Great Lakes Cormorant population increased from only about 200 nesting adults in 1970 to more than 260,000 nesting adults in 2006.\u00a0<\/p>
\u2219In 1890, about 60 European starlings were released in New York City\u2019s Central Park. Starlings are now the second most abundant bird in North America with a late\u00ac summer population of more than 150 million birds. Starlings are considered \u201cfeathered bullets,\u201d having a body density 27 percent higher than herring gulls.<\/p>
\u2219The North American nonmigratory Canadian geese population increased about fourfold from 1 million birds in 1990 to more than 3.9 million in 2009. During the same time period, the North American snow goose population increased from about 2.1 million to 6.6 million birds<\/p>
\u2219About 1,500 Canadian geese strikes with civil aircraft were reported in the United States between 1990 and 2009. About 42 percent of these strike events involved multiple birds.<\/p>
\u2219A 12\u00acpound Canadian goose struck by a 150\u00acmph airplane at liftoff generates the kinetic energy of a 1,000\u00acpound weight dropped from a height of 10 feet.<\/p>
\u2219The North American population of greater snow geese increased from about 50,000 birds in 1966 to more than 1 million birds in 2009.<\/p>
\u2219The nesting population of bald eagles in the contiguous united States increased from fewer than 400 pairs in 1970 (two years before DDT and similar chlorinated hydrocarbon insecticides were banned) to more than 13,000 pairs in 2010. Between 1990 and 2009, 125 Bald Eagle strikes with civil aircraft were reported in the United States. The mean body mass of bald eagles is 9.1 pounds for males and 11.8 pounds for females.<\/p>
Source: bird Strike committee USA<\/small><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t