Thomas J. Roffe 1988 <p>In May 1985, epizootic mortality was reported in common egrets (<i>Casmerodius albus</i>) on Avery Island, Louisiana. Subsequent investigation revealed that more than 400 birds died. Severe peritoneal nematodiasis (<i>Eustrongylides</i> sp.) was found on postmortem examination. A nearby breeding rookery on the same island was apparently unaffected. Reasons for this selective mortality are presented. Three other reports of epizootic mortality due to <i>Eustrongylides</i> sp. have been reported. This is the first report of this type of epizootic in gulf-coast birds.</p> application/pdf 10.2307/1590964 en American Association of Avian Pathologists Eustrongylides sp. epizootic in young common egrets (Casmerodius albus) article