The download jar file contains the following class files or Java source files.
META-INF/MANIFEST.MF
META-INF/maven/it.tidalwave.bluebill/it-tidalwave-bluebill-taxonomy-birds-birdsofindia-2009/pom.properties
META-INF/maven/it.tidalwave.bluebill/it-tidalwave-bluebill-taxonomy-birds-birdsofindia-2009/pom.xml
it.tidalwave.bluebill.taxonomy.birds.birdsofindia.BirdsOfIndia2009Generator.class
it.tidalwave.bluebill.taxonomy.birds.birdsofindia.BirdsOfIndia2009Importer.class
it/tidalwave/bluebill/taxonomy/birds/birdsofindia/BirdsOfIndia1996ToCatalogueOfLifeTranslations.config
it/tidalwave/bluebill/taxonomy/birds/birdsofindia/Bundle.properties
it/tidalwave/bluebill/taxonomy/birds/birdsofindia/Checklist of the birds of India.txt