The Canada Food Inspection Agency publishes weekly estimates of the number of birds affected by highly pathogenic avian influenza infections. The numbers seem relatively high (any number above zero is concerning), but they have barely increased since January:
Week ending 2023-01-18: 748,000 birds affected in Ontario, 7,051,000 in Canada [1]
Week ending 2023-03-22: 749,000 birds affected in Ontario, 7,173,000 in Canada [2]
[1] https://web.archive.org/web/20230120170319/https://inspectio...
[2] https://inspection.canada.ca/animal-health/terrestrial-anima...