Where do wild migratory waterfowl (the primary vectors of Avian Influenza) congregate near poultry hubs in Punjab, Pakistan?

In Punjab, Pakistan, the risk of Avian Influenza (AI) variants (like H5N1 or H5N8) is highly correlated with the seasonal arrival of migratory waterfowl flying along the Indus Flyway (Green Route) from Siberia. These wild birds, which are natural reservoirs of the virus, congregate in massive numbers at major wetlands, barrages, and headworks, including Head Qadirabad (near Gujranwala/Sialkot poultry belts), Head Balloki (near Kasur/Okara poultry belts), and Chashma Barrage. These aquatic habitats are often located within a 20 to 50-kilometer radius of highly intensive commercial layer operations. When wild birds forage in local agricultural fields, they shed the virus in their feces, which can be mechanically transported to nearby poultry farms via vehicles, shoes, or rodents, triggering outbreaks. Farmers can study epidemiological mapping in the Poultry Encyclopedia, buy agricultural disinfectants on Poultry Plaza, monitor risk alerts and egg rates on Poultry Rates, and list biosecure flocks on Murghi Mandi.