Migration

Researchers: More than 4 billion birds stream overhead during fall migration

Fewer birds return to their breeding grounds after going through fall migration and spending months on their wintering grounds. But the researchers were surprised to find that the migrants arriving across the U.S. southern border had an average return rate of 76 percent during the 5 years of the study (2013 to 2017) and the birds wintering in the U.S. had only an average return rate of 64 percent.

Tracking whoopers: North Dakota readies for migrating whooping cranes

The whoopers that do make their way through North Dakota are part of a population of about 400 birds that are on their way from wintering grounds at Aransas National Wildlife Refuge in Texas to their nesting grounds at Wood Buffalo National Park in Canada, a distance of about 2,500 miles. Anyone seeing these endangered birds as they move through the state is asked to report sightings so the birds can be tracked.

Massive sandhill cranes migration stop in northwestern Indiana

(Photo courtesy of International Crane Foundation)MEDARYVILLE, Ind. — Thousands of sandhill cranes have been roosting in rural northwestern Indiana as part of their annual fall migration. More than 10,000 cranes a day have been counted at Jasper-Pulaski Fish & Wildlife Area. The marsh-filled wildlife area, about 40 miles southeast of Gary, has long been a pit stop for cranes as they migrate…