Aythya affinis
National Institutes of Health
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Surveys indicate that Lesser Scaup ( Aythya affinis ) populations declined during the early 1980s and have since remained below…
Annually large flocks of lesser scaup (Aythya affinis) wintering off the Louisiana coast would, at times, move inland into small…
Long-term surveys indicate a decline of lesser scaup (Aythya affinis: hereafter scaup) populations breeding in boreal forest of…
A coccidiosis epizootic has occurred in lesser scaup (Aythya affinis) at Bluestem Reservoir in eastern Nebraska during the spring…