https://species.wikimedia.org/wiki/Neopelma_aurifrons
Neopelma aurifrons - Wikispecies
wikispecies
https://digitalcommons.usf.edu/opmz/17/
"A new race of Centurus aurifrons (Aves: Picidae) from British Honduras" by S. M. Russell
By S. M. Russell, Published on 01/01/63
https://www.christies.com/en/private-sales/privateitems/COMPANY-SCHOOL-LUCKNOW-OR-CALCUTTA-INDIA-CIRCA-177-SN00688385-003
A GREEN BULBUL (CHLOROPSIS AURIFRONS) ON A TREE BRANCH
A GREEN BULBUL (CHLOROPSIS AURIFRONS) ON A TREE BRANCHCOMPANY SCHOOL LUCKNOW OR CALCUTTA, INDIA, CIRCA 1775-85Translucent and opaque pigments with gum arabic,...
greenbulbultreebranch