Bonaccorso E (March 2009). "Historical biogeography and speciation in the neotropical highlands: molecular phylogenetics of the jay genus Cyanolyca". Molecular Phylogenetics and Evolution. 50 (3): 618–632. doi:10.1016/j.ympev.2008.12.012. PMID19135159.
Hardy, John William (1967). "The puzzling vocal repertoire of the South American Collared Jay, Cyanolyca viridicyana merida". The Condor. 69 (5). Cooper Ornithological Society: 513–521. doi:10.2307/1366150. JSTOR1366150.
Hardy, John William (1967). "The puzzling vocal repertoire of the South American Collared Jay, Cyanolyca viridicyana merida". The Condor. 69 (5). Cooper Ornithological Society: 513–521. doi:10.2307/1366150. JSTOR1366150.
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pubmed.ncbi.nlm.nih.gov
Bonaccorso E (March 2009). "Historical biogeography and speciation in the neotropical highlands: molecular phylogenetics of the jay genus Cyanolyca". Molecular Phylogenetics and Evolution. 50 (3): 618–632. doi:10.1016/j.ympev.2008.12.012. PMID19135159.