Pyrume

The Pyrume is an idea I've had in my head for some time, in various forms. I don't really know where to go with it, so do with it what you will.

Here's the ideas I have so far:

Ecology
The Pyrume is by no means an apex predator, and in fact, it mostly keeps to itself. It tends to fly far and wide in its search for developing Flying Wyvern populations. It has adapted to easily kill and consume small flying wyverns, such as the young of Rathian and Rathalos, and escape without being killed themselves. This earns it a reputation as a reaper of children, also known as the "Nest Reaper". It can fly away with almost any weight, and will also very occasionally eat eggs.

It is rarely a flock animal, except in early spring, when the young of the last year's brood are ready to depart their nests and developed, sexually mature adults are ready to mate once again. After summer has arrived, however, they will separate into much smaller groups and settle into nests on cliffsides.

how does it look
In bodily form, it resembles a cross between a Rathalos and a crow. The beak is formed into a gentle-looking, hooked, elongated appendage. This is but a facade that hides incredibly sharp cutting teeth in the front of the bony tool. These are used to mercilessly rip the scales off of prey and mutilate them once their skin is exposed.

The tail is quite agile, and it is covered with feathers. It can be moved into a wide range of positions, and the feathers at the very end are incredibly stiff and are tipped with chitinous blades.

The wings are quite long, but thin, and aren't very wide. The monster glides very far and very fast on these wings. It is also thought that the feathers from these monsters are among the very softest and highest-quality.

notable stuff
The Pyrume uses Dragon element, composed of excess minerals and gases created by decomposing monster scales and parts inside a unique digestive component. The Pyrume utilizes an evolved nasal passage to forcefully spray this over its quarry, disabling it until the oily substance falls away and dissipates.