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Table 2 AIV prevalence among avian orders.

From: Mapping the risk of avian influenza in wild birds in the US

AIV-positive species Common name Prevalence (%)
Anseriformes   
Cygnus olor Mute Swan 100
Anas rubripes American Black Duck 50
Aythya Americana Redhead 33.3
Anas carolinensis Green-winged Teal 7.36
Anas platyrhynchos Mallard 5.9
Charadriiformes   
Arenaris interpres Ruddy Turnstone 16.3
Falconiformes   
Haliaeetus leucephalus Bald Eagle 1.23
Passeriformes   
Regulus satrapa Golden-crowned Kinglet 50
Passerella iliaca Fox Sparrow 10
Piranga ludoviciana Western Tanager 9.09
Seiurus noveboracensis Northern Waterthrush 9.09
Carpodacus cassinii Cassin's Finch 8.33
  1. Two orders (Charadriiformes and Falconiformes) had only one AIV-positive species. For orders in which influenza was detected in at least five species, the top five species in terms of prevalence are listed below.