Project description:Sporophila maximiliani, commonly known as Great-billed Seed-Finch or 'bicudo', is a trafficked bird in Brazil due to the species' beauty and singing, which is appreciated by breeders and collectors. Generally, the Environmental Military Police and IBAMA maintain enforcement actions, rescue work, and seizure of illegally traded of 'bicudo' specimens. The genomic DNA of one specimen was sequenced on MiSeq (Illumina) sequencer. The reads obtained were analyzed, trimmed, and de novo assembled using CLC Workbench® v9.0 (CLC Bio-Qiagen). The mitochondrial genome of S. maximiliani consisted of 16,765 base pairs, 2 ribosomal RNA, 22 transporter RNA, 13 protein-coding genes, and 1 control region. The molecular phylogeny demonstrated that the mitochondrial genome of S. maximiliani diverged from others related Passeriformes.