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新年前夕，約5000只紅翅烏鶇從阿肯色州比比鎮(zhèn)的天空中墜落。該州狩獵和漁業(yè)委員會(huì)稱“這些鳥曾受過(guò)嚴(yán)重的身體創(chuàng)傷”。據(jù)說(shuō)這種鳥夜間視力較差，很少在夜間飛行。對(duì)于鳥的死亡原因，有人推測(cè)說(shuō)是因?yàn)槿藗內(nèi)挤艧熁ㄖ率谷壶B受驚，墜地而亡。但也有人猜測(cè)這群鳥可能在飛行過(guò)程中被閃電擊中。該委員會(huì)說(shuō)將對(duì)死鳥進(jìn)行進(jìn)一步的檢測(cè)以確定原因。同時(shí)，自上周開始，阿肯色河陸續(xù)發(fā)現(xiàn)有近十萬(wàn)條魚暴斃，該河距比比鎮(zhèn)只有125英里。魚暴斃的檢驗(yàn)報(bào)告將于一個(gè)月之后出來(lái)，狩獵和漁業(yè)委員會(huì)稱這兩起事件并不相關(guān)。
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Thousands of dead red-winged blackbirds fell from the sky in an Arkansas town on New Year's Eve after massive trauma. |
Thousands of dead red-winged blackbirds fell from the sky in an Arkansas town on New Year's Eve after massive trauma, tests by Arkansas veterinary officials concluded on Monday.
Some 5,000 birds mysteriously fell from the sky in Beebe, Ark. after dark on New Year's Eve.
"The birds suffered from acute physical trauma leading to internal hemorrhage and death. There was no sign of chronic or infectious disease," the Arkansas Game and Fish Commission said in a statement. The birds were otherwise healthy, it said.
One theory is that birds were spooked by New Year's fireworks and flew into buildings or other objects.
"Loud noises were reported shortly before the birds began to fall from the sky," the statement said, adding that blackbirds have poor night vision and seldom fly at night.
Another theory was that severe weather such as lightning accounted for the load noises but this was discounted because the violent weather had already left the area.
"We're leaning more toward a stress event," said Arkansas Game and Fish Commission spokesman Keith Stephens.
The commission also is trying to determine what caused the deaths of up to 100,000 fish over a 20-mile stretch of the Arkansas River near a dam in Ozark, 125 miles west of Beebe. The fish were discovered December 30.
Stephens said the commission expects results on the fish tests in probably a month. Disease may be the culprit, since almost all the fish were one species -- bottom-feeding drum, Stephens said.
Stephens said the events do not appear related. Both that section of the river and the air at the site of the bird deaths were tested for toxins, Stephens said. Beebe is a town of about 4,500 people located 30 miles northeast of the state capital.
(Agencies)
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