Back when Pete was working on the Mongoose Races books he asked Greg if there were any rules about creating new sapient races and Greg said, I believe, that Pete could invent new ones if he wanted to.
They were originally created for our Gwenthia book and are a particular favourite of ours, so we threw them into a few places.
They're part human, part raptor. Quite ferocious, but also with a developed civilisation.
According to The Abiding Book, Iqari are found in the upper peaks of Jrustela, and as an allied colony in the God Learner city of Arstranwal, which has been built in the high crags overlooking the Umathelan plain. There is little more information about the Iqari in the Mongoose supplements, so I shall copy the description found on the Gwenthia wiki:
With human bodies and the head and wings of an eagle, Iqari are formidable hunters, possessing the keen sight and instincts of raptors, and the strength and size of humans.
Iqari are social amongst their own kind, but are antagonistic towards most other species, and any who venture too close to their mountain colonies. Certainly they are intelligent, with tool-making and building skills. No one has yet been able to venture successfully into the mountainous reaches they inhabit to view first-hand what kind of settlements they occupy, but the common view is of great collections of nest-like structures that form crude versions of cities, high in the mountain peaks.
Iqari can fly far and wide, but seem to prefer the areas around their home mountains. Iqari hunting flocks regularly attack the settlements clustered in the fertile lower reaches of the hills and mountains, taking livestock and the occasional human victim - either as prey or simply for the joy of the kill.
Iqari communicate through a complex series of beak-clicks, sqwawks, feather-ruffles, head-tilts and hand signals. Some have noted that they can understand certain languages but lack the ability to speak them. As yet, negotiation with Iqari has been futile: they are unwilling to communicate openly or offer any respite from their attacks.
As well as their natural hunting abilities, Iqari employ long, barbed spears when hunting or attacking. These two-metre long weapons are dreadful in use, being either hurled from on-high or used as lances in the feared Iqari death-plunge.
Edit: The Iqari have both arms and wings, so the picture above does not correspond to how they actually look like.