Phylogenetic analysis of the selected fowl adenoviruses (FAdVs) using nucleotide sequences encoding for the hexon gene. The data included Pakistani isolates, indicated with Black Square, and other already published FAdV strains retrieved from GenBank. FAdV strains are classified on serotype level 2,3,9,11 (species D), 5 (species B), 6,7,8a,8b (species E), 1 (species A), 4,10 (species C). The evolutionary history was inferred using the Neighbor-Joining method. The analysis involved 85 nucleotide sequences.