The Coan helix finbird is a subspecies of the helix finbird, endemic to Coan. Unlike the main species, this subspecies is slightly smaller and heavier, with reduced flight activity.

Etymology

From English fin + bird.

Morphology

The Coan helix finbird has reflective white fur with muted orange wing markings, identical to the parent species. Its pseudofins are translucent, malleable, and shaped to aid in agile hunting maneuvers, while its sharp claws and canines are fully functional for capturing and consuming marpichi. Although slightly heavier and more compact, its body maintains a thin, aerodynamic profile.

Physiology

Eyes remain highly adapted for long-distance spotting of prey.

Diet

Preys primarily on marpichi along coastal areas.

Behavior

Life Cycle

Reproduction is opportunistic, with 2–4 eggs per litter. Cubs remain immobile for several months, receiving extensive care before becoming independent. Lifespan is comparable to the parent species.

Social Structure

More sedentary while patrolling its territory compared to the parent species; parental care is provided by the males.

Ecology

It occupies the same ecological niche as its parent species, nesting atop schell helices and, where unavailable, on high coastal cliffs. It plays a critical role in regulating marpichi populations within its restricted range.