The Canadian Food Inspection Agency has updated its list to include a Langley, B.C., farm housing table-egg layers.
The outbreak in those barns was confirmed Saturday, affecting another 53,000 birds and hiking the total number of poultry to be destroyed up to 233,800.
The H5N2 strain of the disease was first identified on Dec. 1 in Chilliwack and Abbotsford, and has prompted the establishment of a control zone covering the southern half of B.C.
Restrictions have been placed on the movement on poultry throughout that area, as well as by at least eight other countries or regions.
The agency is overseeing the euthanization of chickens and turkeys on all the farms as inspectors continue searching for the cause of the outbreak.