Since late 2021, new cases of avian influenza, more commonly known as bird flu, have been spreading among wild and farmed birds globally. Avian influenza, caused by a Type A influenza virus, is not a new disease, and sporadic outbreaks have occurred in most years over the past two decades. The current rise in cases, however, has led to bird deaths from the virus and culling of several million poultry and egg producing birds in Canada. There is concern about where the virus is spreading, how it is being tracked in Canada, and what the risks are to humans.