How possible are the Kig-yar/Jackals as a primitive species?

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How possible are the Kig-yar/Jackals as a primitive species?
Kig-Yar share many features with Earth avians as well as reptiles and exhibit several features that are common among species that have evolved in low-gravity environments. Their legs are sinewy and muscular, and are reverse-jointed in a similar fashion to those of birds. Though they have been mistaken for carnivores, the Kig-Yar are apparently an omnivorous species. Kig-Yar have sharp beaks are lined with razor-sharp teeth, and their tri-digit hands and feet have sharp talons. Their eyes are protected by a nictitating membrane that sweeps across the eyes horizontally. Starved Kig-Yar have been known to eat the flesh of fallen enemies, as well as that of live prisoners. They are gifted with extraordinarily acute senses of sight, hearing, and smell, making them adept as scouts and snipers in the Covenant military. Kig-Yar are also very agile, and can execute swift jumps and rolls in combat; these abilities are most pronounced in the more muscular T'vaoan subspecies, members of which can leap great distances and cover ground at extremely high speeds. Kig-Yar possess a strong salty, occasionally acrid stench. Male Kig-Yar possess plumes of spiny quills (feathers in the case of Skirmishers) at the back of the head and on the elbows; the color of this plumage indicates the Kig-Yar's mood. Quill color also varies between subspecies; Jackal quills typically have brown, red or light blue coloration, whereas Skirmishers generally have black or reddish feathers. Females lack these quills, instead having calloused plates at the forearms and the rear of the head. This thick skin helps protect the female during courtship: when mating, the male will often bite, chew, and tear at the back of the female's head, neck, and arms. Apart from these differences as well as those in reproductive organs, there is no meaningful physical variance between male and female Kig-Yar. So is it possible or not?