The Greater Vasa Parrot, native to Madagascar and the Comoros islands, is an unusual parrot known for its unique behaviors and appearance. They are generally less colorful than most parrots, but make up for it with their interesting personality traits and high intelligence.

• Diet: Fresh fruits, vegetables, seeds, and pellets. Unique in their requirement for more sunlight and calcium than other parrots.
• Housing: Large cage or aviary necessary due to their active nature.
• Behavior: Unique for their moult, where they can lose all their feathers at once. Generally sociable and intelligent.
• Lifespan: Can live up to 25-40 years with proper care.
• Size and Appearance: Around 50 cm (20 inches) in length. Grey overall with a long, slim body shape.
• Training and Enrichment: Intelligent and can be trained to perform tricks. Enrichment through toys and puzzles is essential.
• Social Needs: They are sociable and enjoy interacting with their human caretakers.
• Vocalization: Tend to be quieter than many other parrot species.
• Common Health Issues: Prone to calcium deficiency if not given enough sunlight or a proper diet.
• Handling and Interactions: Enjoy handling and interaction once trust is established.
• Breeding and Reproductions: Breeding is generally successful in captivity.
• Legal Considerations: Not typically subject to restrictions but verify with local and international laws.

All things considered, Greater Vasa Parrots are unique birds with distinct care requirements, particularly in terms of their need for sunlight and calcium. Their intriguing behaviors and long lifespan make them a compelling choice for dedicated parrot enthusiasts. They are relatively quiet, but they require a lot of mental stimulation and social interaction to keep them happy and healthy.