It's spring migration season. Here's what that means for bird flu

Migration alert issued as Chicago area sees surge in bird flights over region

Thousands of birds are expected to migrate over the Chicago area overnight, triggering a “Migration Alert” to help protect the flying travelers. According to BirdCast, a service powered by a variety of groups and institutions including The CornellLab, Colorado State University and others, nearly one million birds crossed over Cook County over a period stretching from Monday evening into Tuesday morning. That number marked the highest migration r…

It's spring migration season. Here's what that means for bird flu

Avian flu detection in commercial poultry is down, a welcome relief as farms across the country recover from huge losses."We lost about 10-and-a-half percent of all the egg-laying population reserves in the United States. So we're getting hit pretty hard," said Yuko Sato, a poultry veterinarian and diagnostic pathologist at Iowa State University.Detection peaked in January and is now trending downward, following a curve that mirrors bird migrati…