Russian cuckoos are taking over Alaska
Talk about crappy new neighbors.
When cuckoos come to town, it invariably spells trouble for resident songbirds. In the cuckoo’s historic range, native species have gotten smart to the cuckoo’s ways and cope with this potential incursion by hiding their nests—and tossing out cuckoo eggs before they have time to hatch. But new research shows that both common and oriental cuckoos may be moving into Alaska, which is a grim prospect for resident warblers, buntings, and wagtails.