blog posts Russian cuckoos are invading Alaska, and native songbirds are at risk May 25, 2018 12:15 pm by Audubon MagazineIllinois in the News Share on Facebook Tweet Email Images Audubon (May 23) '[They] have no defenses against invading cuckoos,' says Illinois professor Mark Hauber. 'They are in for some tough times, and their numbers may dwindle. So this is a true risk.' Share on Facebook Tweet Email