I have bird-like race that I'm writing about, but I have no idea what their houses will be like. I have few things decided already, however, which are as follows :
They are NOT migratory. Though they can fly, they prefer to live in rigid villages, towns etc.
Agriculture is used, but not anywhere near as often as in human civilisations. There is a strong "survival of the fittest" philosophy, and anyone farming would have to take care to not have their goods taken by others.
Magic is wielded by some religious figures, and is based heavily on puppetry. They believe in a gigantic invisible web which ensnares all living things, and priests and the like will adorn themselves in ropes dangling from the head and arms to symbolise this. They will use puppets on occasion as workers, performing menial tasks that such high persons would not stoop to themselves
Their feathers are considerably dense, so insulation isn't an issue. However, they aren't watertight, so ceilings are still necessary
The humans in the world are only at the fifteenth century, and the birds are still at something equivalent to the eleventh, but they can steal from or trade with the humans if they see fit, with some difficulty trading as they struggle with human languages
Given their aggressive nature, they will naturally not hang out in groups larger than a few hundred. Families often dissolve quickly, and instead they live in tribe-like groups, often with only a few defining factors such as skills
The bird-people have six limbs : two legs, a pair of wings, and two arms. Their general shape is the same to a human, and wings notwithstanding they are the same size. If you include the wings, unfurled, they are slightly larger
The birds view humans with a cold indifference, and the humans likewise would not stoop so low as to interact with the "savage" birds. They don't have defined borders of their own, but they respect those of the humans. Occasionally, human countries might be separated by the territories of the birds, who will often try to capitalise on this by enforcing toll roads, collecting resources and very rarely uncut gems or other recognisably valuable items.
With all this in mind, what would their buildings, and indeed cities, look like?