Ducks, Geese, and Swans of the World: Contents, Preface, & Introduction

Ducks, Geese, and Swans of the World: Tribe Anserini (Swans and True Geese)

Ducks, Geese, and Swans of the World: Tribe Cairinini (Perching Ducks)

Ducks, Geese, and Swans of the World: Tribe Oxyurini (Stiff-tailed Ducks)

Ducks, Geese, and Swans of the World: Tribe Dendrocygnini (Whistling or Tree Ducks)

Avian influenza virus prevalence in migratory waterfowl in the United States, 2007-2009.

We analyzed 155,535 samples collected for surveillance of avian influenza viruses (AIVs), in the United States from 2007 to 2009, from migratory waterfowl (ducks, geese, and swans). The goal was to elucidate patterns of prevalence by flyway and functional groups to determine targets for future surveillance. Apparent prevalence of AIV was highest in the Pacific Flyway in 2007-2008 (14.2% and 14....