Wagons
Wagons are interesting, and a bit complex when you think about designing them for different animals that range in sizes and for a variety of purposes.
Let’s start with the smallest wagon used for transporting infants, both dragon and human. It has a rope to pull it with, four wheels and metal belt look like fasteners so the rope can be pulled up at the sides so a dragon can grasp it on the sides and carry it with their feet in flight. Strong rope, light weight but sturdy wood.
Next in size is the bentar wagon it can be a single-one or two people with a small platform or a two seater with a full back, usually pulled by two birds. This can be easily overloaded as the bentar are tall and muscular but wear out fairly easily. An overworked bird can simply drop dead leaving a person stranded.
The larger wagons come next. One Cattle pulled wagon can move the contents of a small house. Two cattle pulling a wagon can haul trees, bricks, harvest, etc. the size of the wagon is built in part to steady and slow the cattle. Most cattle running wild are not dangerous. Around humans trying to control them they sometimes rebell, or even step sideways, move their heads quickly and stomp their feet. They are so large that any wagon they pull has to be very sturdy. Can you imagine trying to drive a team of cattle? I think you can guess why using cattle never caught on in the settlements. Not only is housing and feeding them a challenge, but their droppings are a much bigger problem than any earth critter used for domestic service.