Etai-irin

Etai-irin are the world's wildlife. Unlike Ichauri-irin, Etai-irin are generally not that smart, and cannot understand complex communication or build their own cities and technologies. All they know is predator, maintain ecosystem, prey, be low IQ, eat others, and die.

There are millions of different Etai-irin, so I will only be mentioning a few of them that make a noticeable impact on society (read: my favorites). You'd have to read the Chiruan Encyclopedia for anything more than that.

Feirric

Feirric are the towering creatures that wander forested areas.

They are one of the larger land creatures in Ravenguard, being over eighteen feet (5.49m) tall at the shoulders when standing normally. They mostly live in forested areas, eating the branches and leaves of forest foliage, and occasionally food or garbage left in campsites. They are usually docile, but they will not hesitate to protect themselves through forceful bites, swipes, and crushing the threat with their body weight. Their most notable feature (besides their strange heads and jaws) are their digits, being over twice the length of the hands and feet they are attached to. Their fingers are separated and used as expected, but their toes are fused together into single structures. The digits' connective tissues and bones are strong enough to support the weight of the feirric, allowing it to walk on the tips of said digits.

Feirric are intelligent enough to understand Ichauri-irinic hunting, not interfering with or reacting to a hunter as long as they aren't pointing their firearm at it or others of its kind. Should a hunter try to take a feirric down, they must have weaponry powerful enough to do it. Its hide is tough and thick, making it difficult to kill them; any failed attempt at doing so more often than not leads to the death of the hunter. The high risk associated with feirric hunting leaves it an activity best suited for those who are absolutely certain they will succeed.

Feirrin

Related to the feirric, Feirrin are also forest-dwelling creatures, but are smaller and much more aggressive in nature.

Feirrin have long, bony fingers and toes, and a strange head structure. Somewhat of a bipedal creature, feirrin spend most of their time swinging in the treetops of forests. The thicker the canopy and the darker the forest floor is, the more likely feirrin are to live there. They are predators that will eat anything they can realistically capture, Etai-irin and Ichauri-irin alike.

Unlike feirric, feirrin are not hard to kill with common hunting weapons, and their hides are also quite valuable when in good condition. The main issue hunters face with feirrin is their tendency to strike when unexpected: feirrin will silently wait out of sight within the trees, then drop down above another creature and pull them upward into the canopy. Witnesses of attacks have said that the sole remaining trace of the victim will be their blood dripping to the ground. All hunters roaming areas with known feirrin populations are warned to not enter alone, and to have at least one partner always looking up into the trees for any sign of them.

While usually restricted to forests, feirrin have recently been spotted inside Ichauri-irinic settlements, attempting to abduct livestock, pets, and small children. In response, many places near forests have volunteer groups willing to patrol the edges closest to the woods for any suspicious activity. We can only assume that they are becoming emboldened and want to proactively find prey rather than wait for it in their home regions.

Redfeather

While a Redfeather has a large build and a bit of an intimidating face, it is nowhere near as hostile as a feirrin, for example.

Redfeathers like to eat fruits and smaller animals, dead or alive. Like their name implies, they have vibrant red flight feathers, and red fur-like feathers from the top of their heads down to their tails. The rest of their feathers are a reddish-brown color, and have yellow (or less commonly, black) scales on their legs. They are rarely used as a food source because their meat has an odd taste to it, but they can be used as working animals instead. Their muscular bodies are strong enough to endure being tethered to a heavy load, and pull it wherever its handler wants it.

The size and strength of redfeathers had Ichauri-irin of the past wonder if they could also be trained to be a form of transportation. As a result of their efforts, redfeathers are the only rideable animal that are capable of flight, able to carry both a passenger and additional lightweight cargo. The downsides (as there always is) of redfeather transport are 1) it may be dangerous while in the air due to weather, man-made constructs, and aircraft; and 2) it's hard to come by when there are other, more efficient ways of transport readily available.

White-metal Worm

One of the most recognizable creatures in the world, White-metal Worms of all species are completely harmless to all non-plant life. Not to be confused with the silver-metal variant.

White-metal worms are varied in size depending on age and diet, being as small as a banana to as big as an average mop. They get their name from the natural plate "armor" on their heads—which by the way are not made of actual metal, but tough, reflective scale hide. They have three pairs of eyes protected under the aforementioned head plates, as well as protrusions that look like horns. The worms also have thin, barbed tail ends that resemble the structure of barbed wire, observed to only be used for anchoring the worm to something in the environment.

The smallest white-metal worms are often used as feed for pets that require live food, but the worms themselves can be pets as well. They are easy to take care of, as all they need is a clean habitat and any vegetation to eat, making them good first pets for children or for those who don't want a high-maintenance pet.