Scientists track egret's 38-hour flight from Australia to PNG
Great egrets were found to disperse in all directions, said the scientists from Australia's Commonwealth Scientific and Industrial Research Organisation.
But the plumed egrets all migrated north, and one was tracked flying almost 2,400 kilometres (1,490 miles) over several months before settling near the town of Kalo, southeast of Port Moresby.
It took that bird 38 hours to fly more than 700km across the Coral Sea, according to findings published in the journal Pacific Conservation Biology on Monday.
It was the first time scientists had recorded the plumed egrets' migration.
Another Australian bird, the bar-tailed godwit, holds the world record for flying more than 13,500 kilometres non-stop in just 11 days during its migration south from Alaska to Tasmania.
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