Spring migration is in full swing, and knowing when peak migration will occur in your area is valuable information! Here we provide a sortable table of peak periods of spring bird migration for the largest cities by human population size in the contiguous US.  Read more

As a reminder to what the team is working on here at BirdCast, we return to a previous post we wrote. With spring soon arriving and preparations for migration underway, here is a primer on what we do. We turn weather radar data into information on the numbers and flight directions of birds aloft in order to expand the understanding of migratory bird movement. After several years (and hundreds of posts) describing migration, species on the move, and unique migration events, we want you to have a better understanding of what happens at BirdCast. Here is a brief overview and a behind-the-scenes look at the ways we apply radar data to study bird migration.  Read more