E is for Eastern lowland gorilla Only two of of these exists in captivity today, two females in Antwerpen Zoo. They are in fact more hairy than a western lowland gorilla.
G is for greater racquet tailed drongo. These are aggressive and fearless birds, 32 cm in length, and will attack much larger species if their nest or young are threatened. This courageous drongo usually leads the mixed feeding flocks typical of Asian jungle habitats.
H is for hardon (or hardun), which is a rude-sounding name for a southern European agamid (and not to be a stickler or anything, but a very few of the facts in this game are more "internet-facts" than true facts)
I is for Indian hornbill. Also known as the great Indian hornbill, Concave casqued hornbill, Indian pied hornbill, this species does not have any yellow pigment, it all comes from a special gland on the bird's back.
J is for Jacana. the nostrils are located halfway along the bill rather than at the base as in most birds. This is so the chicks can submerge themselves to hide from danger but still be able to breathe
K is for Kulan. Almost identical to the Onager and difficult to distinguish from it- not kept in the Uk anymore.
N is for Nanday Conure Apparently there are self-sustained feral populations in Florida and California. I'd not heard that before.
P is for Papuan lorikeet. There is a melanistic form of this bird which is more common at a higher altitude. In some places the ratio of Black to red can be 4:1!!
Q is for quelea. Flamethrowers have been used to try and control the numbers of the red-billed quelea because local farmers consider them to be a pest
T is for touraco (or turaco). They have two unique pigments in their feathers, turacoverdin which is a green one, and turacin which is a red one.
U is for Ultramarine lory. It is one of the 50 rarest birds in the world, and has truly amazing colours.
V is for vampire bat Desmodus draculae was described in 1988 from Pleistocene fossils, and was 25% larger than living species. There are local reports of very large bats attacking cattle in Brazil, which some have attributed to surviving D. draculae
W is for Weka. Also called Woodhen (another W) X is for New Zealand Rock Wren. (Its latin name is Xenicus gilviventris)