The upgrade to International Ornithological Congress taxonomy 2.3 was quite an ordeal. I first wanted
to do the changes manually, but they were too many, and I eventually regenerated the database from
scratch. So I was able to upgrade to IUCN Red List 2009.2. Here are about half of the name changes, but there were just as many splits and joins. IOC uses umlauts, or German accent characters, which I don't agree with.

Fulleborn's Longclaw -> Fülleborn's Longclaw
Ruppell's Korhaan -> Rüppell's Korhaan
Papuan Flightless Rail -> New Guinea Flightless Rail
Purple Ground Dove -> White-breasted Ground Dove
Broad-crested Corella -> Solomons Cockatoo
Shawl-collared Lorikeet -> Biak Lorikeet
Singing Parrot -> Song Parrot
Bohm's Spinetail -> Böhm's Spinetail
Midget Myzomela -> Mountain Myzomela
Black Myzomela -> Papuan Black Myzomela
Crimson-fronted Myzomela -> New Ireland Myzomela
Islet White-eye -> Louisiade White-eye
Kruper's Nuthatch -> Krüper's Nuthatch
Ruppell's Starling -> Rüppell's Starling
Oberlander's Ground Thrush -> Oberländer's Ground Thrush
Peleng Thrush -> Red-and-black Thrush
Ruppell's Robin-Chat -> Rüppell's Robin-Chat
Guldenstadt's Redstart -> Güldenstädt's Redstart
Ruppell's Black Chat -> Rüppell's Black Chat
Bohm's Flycatcher -> Böhm's Flycatcher
Ruck's Blue Flycatcher -> Rück's Blue Flycatcher
Jungle Sparrow -> Sind Sparrow
Grey Sparrowhawk -> New Britain Sparrowhawk
Grey-lined Hawk -> Grey Hawk
Cloud-forest Nightjar -> Archbold's Nightjar
Ruby Topaz -> Ruby-topaz Hummingbird
Black-breasted Plovercrest -> Plovercrest
Scarlet-bibbed Myzomela -> Sclater's Myzomela
Ebony Myzomela -> Bismarck Black Myzomela
Splendid Myzomela -> Black-bellied Myzomela
Rusty Mouse Warbler -> Rusty Mouse-warbler
Bicolored Mouse Warbler -> Bicolored Mouse-warbler
Mountain Mouse Warbler -> Mountain Mouse-warbler
Luhder's Bushshrike -> Lühder's Bushshrike
Fulleborn's Boubou -> Fülleborn's Boubou
Rufous-collared Monarch -> Ochre-collared Monarch
Magpielark -> Magpie-lark
Torrentlark -> Torrent-lark
Cuckoo Weaver -> Cuckoo Finch
Jungle Boobook -> Papuan Boobook
Barred Boobook -> New Ireland Boobook
Spangled Boobook -> New Britain Boobook
Bohm's Bee-eater -> Böhm's Bee-eater
Black-billed Cuckoo-Dove -> Bar-tailed Cuckoo-Dove
Spot-breasted Cuckoo-Dove -> MacKinlay's Cuckoo-Dove
Growling Imperial Pigeon -> Finsch's Imperial Pigeon
Shining Imperial Pigeon -> Rufescent Imperial Pigeon
Floury Imperial Pigeon -> Island Imperial Pigeon
Pinon Imperial Pigeon -> Pinon's Imperial Pigeon
Zoe Imperial Pigeon -> Zoe's Imperial Pigeon
Bismarck Imperial Pigeon -> Yellowish Imperial