Eddleman, William R. (2002). Poole, A. (ed.). "Hepatic Tanager (Piranga flava)". The Birds of North America Online. Ithaca: Cornell Lab of Ornithology. Archived from the original on December 10, 2012.
aviansystematics.org
"The Family Cardinalidae". Howard & Moore checklist. 4.1. The Trust for Avian Systematics. Retrieved 28 April 2024.
Eddleman, William R. (2002). Poole, A. (ed.). "Hepatic Tanager (Piranga flava)". The Birds of North America Online. Ithaca: Cornell Lab of Ornithology. Archived from the original on December 10, 2012.