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- Parrot Smuggler Guilty Plea
- Molecular Systematics of the Cape Parrot (Poicephalus Robustus): Implications for Taxonomy and Conservation
- Further Studies on Exclusion in Grey Parrots (Psittacus Erithacus)
- Aves, Psittaciformes): Phylogeny and Proposal for a Putative Ancestral Karyotype for Tribe Arini
- Southern Africa's Wildlife Trade
- Shades of Grey: the Legal Trade in CITES-Listed Birds in Singapore, Notably the Globally Threatened African Grey Parrot Psittacus Erithacus
- The Complete Genome Sequences of 22 Parrot Species
- Population Viability and Conservation of Grey Parrots Psittacus Erithacus on the Island of Príncipe, Gulf of Guinea
- Trade in African Grey Parrots for Belief-Based Use: Insights from West Africa’S Largest Traditional Medicine Market
- Population Status and Distribution of Naturalized Parrots in Southern
- Grey Parrot Psittacus Harvesting for Conservation Must Have a Robust Scientific Basis: Commentary on Tamungang Et Al
- Chromosome Painting in Neotropical Long- and Short-Tailed Parrots (Aves, Psittaciformes): Phylogeny and Proposal for a Putative Ancestral Karyotype for Tribe Arini
- A Study of Sharing and Reciprocity in Grey Parrots (Psittacus Erithacus)
- Status and Trade Assessment of Parrots Listed in CITES Appendix I
- Robust Representation of Shape in a Grey Parrot (Psittacus Erithacus) ⇑ Irene M
- Avian Bornaviruses in Psittacine Birds from Europe and Australia With
- Proquest Dissertations
- African Grey Parrot Psittacus Erithacus Case Study
- Table 7: Species Changing IUCN Red List Status
- Relatedness Between Host Species and Genotype of Beak and Feather Disease Virus
- SC69 Doc. 29.4
- Human–Grey Parrot (Psittacus Erithacus) Reciprocity: a Follow-Up Study
- Numerical Competence in an African Gray Parrot (Psittacus Erithacus)
- DNA-Sequence Data Require Revision of the Parrot Genus Aratinga (Aves: Psittacidae)
- Grey Parrot (Psittacus Erithacus) Numerical Abilities: Addition and Further Experiments on a Zero-Like Concept
- Reappraisal of the Parrots (Aves: Psittacidae) from the Mascarene Islands, with Comments on Their Ecology, Morphology, and Affinities
- A Revised Nomenclature and Classification for Family-Group Taxa of Parrots (Psittaciformes)
- Aggressive Display in Adult Jardine's Parrots (Poicephalus Gulielmi)
- 1 Transfer of African Grey Parrot Psittacus Erithacus from Appendix II to Appendix I Proponents: Angola, Chad, European Union, G
- Mirror Use by African Grey Parrots (Psittacus Erithacus)
- Journal of Comparative Psychology