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Pacific Islands H5N1 Wildlife Surveillance Plan. General Overview. Why Sample Wild Birds?. They are the known reservoirs of AI They are suspected to move HPAI H5N1 in Europe, Asia and Africa

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Pacific Islands H5N1 Wildlife Surveillance Plan

General Overview


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Why Sample Wild Birds?

  • They are the known reservoirs of AI

  • They are suspected to move HPAI H5N1 in Europe, Asia and Africa

  • In the U.S., domestic poultry is monitored carefully and importation of products from HPAI areas is controlled.

  • Wild birds are not regularly monitored


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Why Sample the Pacific Islands?

  • Flyways include known HPAI areas in China, NE Asia

  • Species (esp. shorebirds) in the Pacific are not well sampled in N. America.

  • U.S.-Affiliated Pacific covers an area larger than N. America, and reaches within 700 miles of Indonesia



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Sampling Methods

  • Investigation of Morbidity/Mortality Events (most likely detection)

  • Surveillance in Live Wild Birds

  • Sentinel species (ducks)

  • Environmental (Fecal) Sampling

    Collaboration between USDA-WS, FWS, USGS, and local wildlife agencies


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Northern Pintail

Northern Shoveler

Other Asian species

Pacific Golden-Plover

Ruddy Turnstone

Bristle-thighed Curlew

Other Asian species

Priority SpeciesDucks Shorebirds

Based on numbers on Pacific Islands, Asian component in breeding range, and mixing with Asian birds during migration


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Surveillance: Live Ducks

  • Ducks preferable to shorebirds due to higher AI prevalence

  • No hunting or banding currently

  • Capture ducks with baited traps

    • Sample size desired ~200 for each species

  • Focus on Hawai’i and Marianas

  • Requires dedicated crew plus volunteers


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Surveillance: Live Shorebirds

  • Shorebirds more abundant but dispersed

  • Fecal sampling more efficient than capture?

  • Capture with

    • Mist nets

    • Walk-in traps

    • “Whoosh” nets

  • Focus on Hawai’i, Marianas, island Refuges

  • Requires dedicated crew plus volunteers


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Dead Bird Sampling Plan

  • Use live bird crews plus existing networks in Hawai’i, Marianas

  • Add 1 dedicated tech each to Palau, American Samoa

  • All migratory mortalities will be investigated

  • Coordinate with existing agriculture, wildlife agencies and networks


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