This hatchling appears to be... dead?

Perhaps not. It seems to be active during the night.

Young dragons are relatively defenseless. They are born with relatively soft scales, which are shed and replaced with harder ones as the hatchling matures. Once a hatchling’s wings grow in, it typically marks the beginning of maturation. At this point they are often capable of hunting on their own and are usually left alone by their mother.

Tiny and helpless, Little Shriek shows her truest of colours whenever any dragon excluding her immediate family draws too near.

Shriek, originally a Guardian, was doomed from her laying. Undersized and thin-shelled, as an egg she was fated to die, if her egotistic mother hadn't insisted on 'saving' her in the most twisted way; sacrificing her malformed, egged daughter to be turned by a Vampire. Her egg was cuckooed away into the nest of a non-clan dragoness during a hunt; Shriek hatched an exact week later, living up to her name by screaming mentally and vocally for her true mother.

The poor, demented creature that she is, Shriek now resides in the main cave; tucked into the shadows where even the Stones rarely tread, she is unable to move on her under-developed limbs. Her death-rattle breathing, no longer necessary, can be heard when one wanders too deeply into the cave, often followed closely by her tell-tale, mindless shrieking when some unbidden being draws too near.