Avian keratin disorder

Avian keratin disorder (AKD) is an emerging disease among wild birds in North America characterized by overgrowth and deformities of beaks. Cases were first observed among black-capped chickadees in Alaska in the late 1990s, and it has spread rapidly since then. The cause of AKD is unknown, but may be Poecivirus, a prospective new species of virus within the family Picornaviridae.

Avian keratin disorder

Avian keratin disorder (AKD) is an emerging disease among wild birds in North America characterized by overgrowth and deformities of beaks. Cases were first observed among black-capped chickadees in Alaska in the late 1990s, and it has spread rapidly since then. The cause of AKD is unknown, but may be Poecivirus, a prospective new species of virus within the family Picornaviridae.