http://blx1.bto.org/birdfacts/results/bob2310.htm Honey Buzzard Pernis apivorus [Linnaeus, 1758], Robinson R.A, 2005, BTOweb, British Trust for Ornithology, British Trust for Ornithology, Thetford (Norfolk), Britio, enretigita la 29an de Sept 2008, konsultita la 20an de februaro 2009
http://www.iucnredlist.org/details/144311[rompita ligilo] Pernis apivorus, BirdLife International, 2008, iucnredlist.org, IUCN Red List of Threatened Species, konsultita la 19a de marto 2009