Bird flu: near Stockbridge, Test Valley, Hampshire (AIV 2025 63)

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in captive birds near Stockbridge, Test Valley, Hampshire (AIV 2025 63) on 11 October 2025.

• From: Department for Environment, Food & Rural Affairs and Animal and Plant Health Agency
• Published: 11 October 2025

• Disease Type: Bird flu (avian influenza)
• Disease control zone restrictions: In force
• Disease control zone type: Captive bird (monitoring) controlled zone
• Virus strain: H5N1
• Case opened date: 11 October 2025

Case information

11 October 2025 

Highly pathogenic avian influenza (HPAI) H5N1 was confirmed in captive birds near Stockbridge, Test Valley, Hampshire (AIV 2025 63).

A 3km captive bird (monitoring) controlled zone has been declared around the premises. All poultry on the premises will be humanely culled.

Download the declaration of an avian influenza protection zone and surveillance zone

Further information 

Check: 

• the updated bird flu disease control zone map 

• if you need a licence to move poultry, poultry by-products, eggs, material or mammals 

Case number: AIV 2025/63

Published 11 October 2025