BRAUN, F. (2016) – zootier-lexikon.org https://www.zootier-lexikon.org/index.php?option=com_k2&view=item&id=5870%3Abraun-f-2016
Comparing the behaviours before and after enriching the aviary of: Common raven (Corvus corax), kea (Nestor notabilis) and great white pelican (Peleca…
von in Gefangenschaft lebenden Kolkraben, Keas und Rosapelikanen