Our investigation into the composition of the wild duck, Aythya americana, eubacterial microbiome from a fecal sample using amplicon pyrosequencing revealed that the representative bacterial species were quite distinct from a pond water sample, and we were able to classify the major operational taxonomic units with Fusobacterium mortiferum, Streptobacillus moniliformis, Lactobacillus intermedius, Actinomyces suimastitidis, Campylobacter Canadensis, Enterococcus cecorum, Lactobacillus aviarus, Actimomyces spp., Pseudobutyrivibrio spp. and Helicobacter brantae representing the majority of the eubacterial fecal microbiome. Bacterial species present in the analysis revealed numerous organisms linked to human and animal diseases including septicemia, rat bite fever, pig mastitis, endocarditis, malar masses, genital infections, skin lesions, peritonitis, wound infections, septic arthritis, urocystitis, gastroenteritis and drinking water diseases. In addition, to being known carriers of viral pathogens wild ducks should also be recognized as a potential source of a range of bacterial diseases.