Recently they, the I. O. C., released version 6.3 and changes are being made to this site to reflect those updates.
There are now 10,659 species, up 22 since version 6.2. They actually added 23, but they merged one. The Caribbean Coot is now considered an American Coot (Fulica americana).
They have added another species to the Extinct species. Now there are 155 that have become extinct since the early 1500’s. The latest avian added to this list is the Puerto Rican Parakeet. It was also known as the Puerto Rican Conure and was a subspecies of the Hispaniolan Parakeet. (There is a nice turnaround video on that page)
Puerto Rican Conure (Aratinga chloroptera maugei) ©Drawing WikiC
The eye of him who sees me will see me no more; While your eyes are upon me, I shall no longer be. (Job 7:8 NKJV)
Another big change this version, is the removal of a Bird Family, the Pelecanoididae – Diving Petrel Family was consolidated into the Procellariidae – Petrels, Shearwaters family.
Peruvian Diving Petrel (Pelecanoides garnotii) ©WikiC – Video
Magellanic Diving Petrel (Pelecanoides magellani) by DavesBP – Video
South Georgia Diving Petrel (Pelecanoides georgicus) – Video
Common Diving Petrel (Pelecanoides urinatrix) by Daves BirdingPix
So now there are 40 Orders, 238 Families (plus 2 Incertae sedis). I’ll share more later as I update more. Stay Tuned!
Lee's Birdwatching Adventures Plus 
And how can anyone not like an American coot, even if it is form the Caribbean? Obviously I think coots are wonderful birds: https://leesbird.com/2016/05/20/c-is-for-coot-and-corvids-c-birds-part-2/ — I could just “rail” about them — besides, their feet are so amazing! Having been to Puerto Rica, I’ve seen the green-dominated psittacines (parrots, parakeets, and the like) there — and I’m guessing that they are all cousins, descended form the same ancestors aboard Noah’s Ark. But the taxonomic “splitters” (as opposed to the “lumpers”) insist on categorizing the various varieties as separate “species” or “subspecies” (such as the Puerto Rican Parakeet, deemed a subspecies of the Hispaniolan Parakeet) — oh well.
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Just when you think you have the pages straight, a bird fly’s over to another family. Now that’s an “oh well”.
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