Overview
Courier birds are large, intelligent raptors capable of carrying a human rider and a bit of added cargo in flight. They form the backbone of the aerial courier network operated by the Highwind Couriers.
Though imposing in size, these birds are highly trainable and possess remarkable endurance, allowing them to traverse great distances across mountains, forests, deserts, and seas.
Over centuries the guild has selectively bred several regional lines adapted to different climates and terrains. While these lines vary in appearance and temperament, they all belong to the same underlying species and can interbreed.
Taxonomy
Courier birds descend from a now-rare species of giant mountain raptor native to the Velric Shoals and Qadorien.
Modern courier birds are considered a domesticated species maintained through guild breeding programs.
Different breeding lines maintained by the guild are typically classified as regional strains rather than separate species.
Physical Characteristics
Courier birds are among the largest flying animals known in Caitha.
Typical characteristics include:
- Wingspan: 10–14 meters
- Height: roughly comparable to an elk at the shoulder
- Weight: several hundred kilograms
Their skeletons are lightweight but extremely strong, allowing them to carry the weight of a rider and gear without compromising flight efficiency.
Their plumage varies depending on breeding line and environment.
Intelligence and Behavior
Courier birds possess unusually high intelligence for animals and are capable of recognizing:
- their assigned rider
- guild handlers
- common flight commands
- established routes
They form strong bonds with riders, and once paired they may remain partners for decades.
Birds that reject a rider are rarely forced into service, as cooperation between rider and mount is essential for safe flight.
Breeding and Rookeries
The Highwind Couriers maintain dedicated rookeries where birds are bred and trained.
Young birds spend several years under the care of handlers before they are introduced to riders. Apprentices within the guild typically assist in these rookeries as part of their training.
Breeding programs carefully maintain bloodlines to preserve desirable traits such as endurance, maneuverability, or storm resistance.
Regional Breeding Lines
Over time the guild has developed several distinct lines of courier birds adapted to different environments.
Mountain Line
Bred in the mountains around Highwind and at The Crest.
Traits:
- powerful wings
- exceptional endurance
- strong climbing flight
These birds are capable of crossing mountain ranges and carrying heavier loads than most other lines.
Coastal Line
Raised in seaside aeries.
Traits:
- excellent control in turbulent winds
- high agility
- strong navigation instincts
Often used for communication between coastal cities and ships.
Forest Line
Bred in woodland regions.
Traits:
- smaller body size
- quiet gliding flight
- excellent maneuverability
These birds are ideal for short-range courier work.
Desert Line
Raised in arid environments.
Traits:
- high heat tolerance
- strong endurance
- ability to fly long distances between water sources
These birds are often used for extremely long courier routes.
Plains Line
Raised in wide grassland regions.
Traits:
- exceptional straight-line speed
- efficient takeoff from flat ground
- strong acceleration
They are commonly used for high-priority express deliveries.
Relationship With Riders
Among the Highwind Couriers, the bond between rider and bird is considered fundamental.
Partnerships typically begin when a young bird accepts a rider during training. Once established, the pair often fly together for most of the bird’s life.
Veteran riders frequently speak of their birds not simply as mounts, but as trusted companions.
In the Wild
While most courier birds belong to guild breeding programs, small wild populations of their ancestral species still inhabit remote mountain cliffs and highland regions.
Occasionally the guild captures young birds from these populations to introduce new bloodlines into their breeding programs.