This great global migration is a staggeringly complex phenomenon with countless causes and implications. Yet perhaps no other issue is as pressing and as little understood by the average citizen ...

And this year’s migration brings somewhat good news: the population has doubled since last year. The latest count from the World Wildlife Fund offers a glimmer of hope for the eastern monarch ...

Cornell Lab of Ornithology's BirdCast Migration Dashboard allows tracking of bird migration across the U.S., including Michigan. Peak spring migration in Michigan is from March 1 to June 15 ...