State Warns of Avian Influenza Risk as Migratory Birds Arrive

Colorado Parks and Wildlife issued a public advisory on December 13, 2025 that highlighted a seasonal rise in highly pathogenic avian influenza cases coinciding with the arrival of migratory birds in Colorado. The agency urged residents to avoid contact with sick or dead wild birds, to keep pets away from wild birds and carcasses, and to report observed sick or dead birds when appropriate. The advisory also stressed following safe wildlife handling guidance and contacting local wildlife or public health authorities for disposal instructions.

The advisory matters locally because migratory waterfowl and other birds commonly pass through Las Animas County habitat this time of year. Residents who spend time at reservoirs, irrigation ponds, wetlands, and open fields may encounter wild birds. Farmers, poultry producers, dog and cat owners, hunters, and people who find dead wildlife should be aware that highly pathogenic avian influenza can spread among bird populations and pose risks to domestic flocks and companion animals if biosecurity measures are not followed.

Practical steps recommended include avoiding direct contact with sick or dead birds, keeping pets on leashes and away from carcasses, and reporting suspicious bird die offs to Colorado Parks and Wildlife when guidance indicates. The agency reminded residents not to touch sick or dead birds and to contact local authorities for guidance on safe disposal to reduce the risk of spreading the virus. These measures help limit transmission in wild populations and protect private flocks and household pets.

Public health officials emphasize that reporting and proper handling are important for monitoring the outbreak and guiding responses that can protect agriculture and public health. Seasonal migration patterns mean the risk is higher now and may continue through winter stopover periods. Las Animas County residents who work with poultry or who observe unusual bird mortality should act promptly, maintain strong biosecurity around domestic birds, and follow instructions from wildlife and public health officials to reduce local impacts.