Data PolicyPublications | Institutes | Persons | Datasets | Projects | Maps [ report an error in this record ] MSc Karaivanov, Nikolaj Institutes (2) Expertise Taxonomic term: Aves [WoRMS] Bulgarian Academy of Sciences; Institute of Zoology (IZ), more Direct contact at institute: E-mail: Bulgarian Academy of Sciences; National Museum of Natural History; Bulgarian Ornithological Society (BOS), more