I can tell something about this birds
It is my fantasy conception
I have been fantasizing about this for a long time. This is a bird and a house. Rather, even a Victorian mansion. This is a living being. Not the bird on which the house was built.
She has three entrances. A central door leads to the first floor. The second floor can be reached by stairs inside. But you can also get there through the beak of a bird. You can also get to the third floor through the beak when the bird straightens its neck completely. Then you will find yourself at the very top of the spiral staircase inside the neck.
Since this is a living creature, the layout inside is not always constant
Furniture is not part of the bird if you bring it through the hatch at the back. But if you let the bird eat the furniture, it will be safe and sound inside the bird, but it will already be part of its body. Thus, the repair occurs. The bird eats materials from which it should consist.
Coal or wood is the main food of this bird. Like ordinary houses, the bird house does not like dampness and cold, so the stove should burn constantly.
But there are also slightly darker things. They have a peculiar ecosystem. If the bird house needs to become bigger, eating materials will not do anything. The bird house must eat another house in order to become larger. An ordinary stationary house is also suitable, but they are very rare. And also, therefore, ordinary bird houses should be wary of the city bird, since it preys on them.
This is such a metaphor for how cities absorb suburbs.
These are not necessarily eagles, they can be a variety of birds. For example, I have an idea to draw a yacht bird like a cormorant