
AP - Mon Nov 21, 8:52 AM ET
Crows fly around a tree in Kosovo's capital of Pristina, Serbia and Montenegro, Monday Nov. 21, 2005. A deadly strain of avian flu, also known as bird flu, has led to the slaughter of tens-of-millions of poultry, and has spread from Asia to Europe through migratory birds. (AP Photo/Ferdi Limani)