According to BirdCast, ornithologists didn't realize the magnitude of migration that occurred at night until the turn of the 20th century. Fall migration timing varies across the U.S. and even within ...

Fall migration is underway for the birds of North America and, during peak days, hundreds of millions of birds pass overhead under the cover of night. “The earliest migrants are on their way as early ...

Michigan's native birds are arriving for the summer from near and far, but you might not notice as many travel at night. "The movements are massive," said Andrew Farnsworth, a migration ecologist at ...

Cornell's BirdCast is a user-friendly project that lets you watch migration as it happens. As surely as one season marches into the next, the natural world follows suit and prepares for the changes ...

Add Yahoo as a preferred source to see more of our stories on Google. Michigan's native birds are arriving for the summer from near and far, but you might not notice as many travel at night. "The ...