Schemes including Corvus corax

• eBird/Clements Checklist 6.8 Corvus corax
• IUCN Red List of Threatened Species. Version 2012.1 Corvus corax
• eBird/Clements Checklist 6.7 Corvus corax
• IUCN Red List of Threatened Species. Version 2012.2 (106005797) Corvus corax
• CONABIO (189470AVESB501112) Corvus corax
• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.103734) Corvus corax
• eBird/Clements Checklist 6.9 Corvus corax
• GBIF (2482492) Corvus corax
• eBird/Clements Checklist v2017 Corvus corax