Peter C.
...just zis guy, you know?
Finally, a list that I can do! (Because the taxonomy - for the moment, fingers crossed - is actually straightforward...) Forty-seven for me; going to Australia really, really helps, as you can see.
In Costa Rica:
Crimson-fronted Parakeet
Scarlet Macaw
Red-lored Parrot
Mealy Parrot
Orange-chinned Parakeet
Orange-fronted Parakeet
White-crowned Parrot
In Australia:
Sulphur-crested Cockatoo
Rainbow Lorikeet
"White-cheeked" Rosella*
Scaly-breasted Lorikeet
King Parrot
Galah
Crimson Rosella
Ringneck Parrot
Red-winged Parrot
Pink (Major Mitchell's) Cockatoo
Little Corella
Blue Bonnet
Yellow-tailed Black-cockatoo
Red-rumped Parrot
Purple-crowned Lorikeet
Long-billed Corella
Cockatiel
Budgerigar
Mulga Parrot
Red-tailed Black-cockatoo
In Cuba:
Cuban Parrot
In Belize:
Brown-hooded Parrot
Yellow-headed Parrot
Olive-throated Parakeet
In Ecuador:
Red-billed Parrot
White-capped Parrot
Maroon-tailed Parakeet
Bronze-winged Parrot
Cobalt-winged Parakeet
Yellow-crowned Parrot
Scarlet-shouldered Parrotlet
Orange-cheeked Parrot
Dusky-headed Parrot
Blue-headed Parrot
Black-headed Parrot
Blue-winged Parrotlet
In England:
Rose-ringed Parakeet
In Mexico:
White-fronted Parrot
In Chile:
Burrowing Parrot
Austral Parakeet
*This is an old name. I'm fairly sure this particular bit of parrot taxonomy has changed since I saw it - I just haven't had a chance to figure out what the species is called now!
In Costa Rica:
Crimson-fronted Parakeet
Scarlet Macaw
Red-lored Parrot
Mealy Parrot
Orange-chinned Parakeet
Orange-fronted Parakeet
White-crowned Parrot
In Australia:
Sulphur-crested Cockatoo
Rainbow Lorikeet
"White-cheeked" Rosella*
Scaly-breasted Lorikeet
King Parrot
Galah
Crimson Rosella
Ringneck Parrot
Red-winged Parrot
Pink (Major Mitchell's) Cockatoo
Little Corella
Blue Bonnet
Yellow-tailed Black-cockatoo
Red-rumped Parrot
Purple-crowned Lorikeet
Long-billed Corella
Cockatiel
Budgerigar
Mulga Parrot
Red-tailed Black-cockatoo
In Cuba:
Cuban Parrot
In Belize:
Brown-hooded Parrot
Yellow-headed Parrot
Olive-throated Parakeet
In Ecuador:
Red-billed Parrot
White-capped Parrot
Maroon-tailed Parakeet
Bronze-winged Parrot
Cobalt-winged Parakeet
Yellow-crowned Parrot
Scarlet-shouldered Parrotlet
Orange-cheeked Parrot
Dusky-headed Parrot
Blue-headed Parrot
Black-headed Parrot
Blue-winged Parrotlet
In England:
Rose-ringed Parakeet
In Mexico:
White-fronted Parrot
In Chile:
Burrowing Parrot
Austral Parakeet
*This is an old name. I'm fairly sure this particular bit of parrot taxonomy has changed since I saw it - I just haven't had a chance to figure out what the species is called now!