This study characterises the microbial composition Procellariiform seabirds and examines the influence of stomach oils on the microbial community using q16S rRNA pyrosequencing. The results indicated that Procellariiform seabirds harbour a highly diverse community of microbes, dominated by three phyla Firmicutes, Proteobacteria and Bacteroidetes and that a high level of dissimilarity exists between all three species. A Significant differences were observed when comparing the oil producing and non-oil producing seabirds. In addition, negative correlations were observed by a Pearsons Correlation network between stomach oil producing (FP and STS) and non-stomach oil producing (CDP) Procellariiformes.