The Quadrangle of the Birds is formed by four buildings enclosing a closed inner courtyard. On the eastern side stands the Pyramid of the Soothsayer, which serves as the visual focal point of the quadrangle and this sector of the settlement. At the top of the pyramid, on the first level, is a building known as the Temple of Chen, whose facade features a huge zoomorphic mask. The top of the foundation is crowned by a structure composed of three aligned quarters. The central section faces west, while the other two face east. At the northern, southern, and western ends of the courtyard are palace-type buildings, each distinguished by its own features. The northern building consists of two parallel rows of three quarters each. Originally, the front rooms had several entrances, although later the Maya left only the central portico. The southern building has three aligned quarters and a spacious vaulted portico at the front. The portico spans the entire facade of the building and consists of 13 bays and 12 columns.

Such entrances are rare in the Puuc region and can be considered as the influence of Chichen Itza on the architecture of Uxmal. The western building consists of eight rooms arranged in two identical T-shaped layouts, connected by a vaulted corridor, which served as the main entrance to the Quadrangle of the Birds. In the middle of the courtyard stands an altar with a monolithic column in the center, a placement typical for this region and visible in other parts of the settlement.

The northern building consists of two rows of rooms lying one behind the other parallel to the facade. The side rooms had three entrances each. Later, two of the side entrances were sealed. The central passage has three columns. The facade decoration is only presumed. The western and northern buildings of the Quadrangle of the Birds, as well as the annexes to the western building. Behind the northern building are annexes to the Women's Monastery and the Women's Monastery itself. In the center of the square is a square platform and an altar stone.

The southern building is formed by a portico with thirteen columns, behind which lie three rooms. Near the passage to the middle rear room in the portico is a seating platform. The reconstruction of the facade is presumed. Numerous stone pegs were found among the rubble of the destroyed building. Therefore, it is assumed that the upper tier was formed by a smooth wall from which stone pegs protruded, on which the decoration was attached. To the east, the square is closed off by the building of the Pyramid of the Magician.

Sources:

José Juchem Herrera, Lourdes Toscano Hernández: THE QUADRANGLE OF THE UXMAL BIRDS