All the bird imageries present in the poetic compositions turned out in
the historical period spanning Tang and Song were undergoing a series of
modifications, through which they segued from the format generated of
primitivism and totemic cult to that characterized by the preponderance
of the poetic style of "yong wu" and of relevant rhetorical devices. All
the literary works produced in the above specified historical period
wear the insignia of cultural fission and re-integration. In the above
specified historical period, the ancient image of bird, as a token of
some ancient religious faith, was translated into such an image of a
very commonplace entity as were usually thought of by the literati. The
ancient image of bird which betokened some primitive religious faith
went through metamorphoses in the above specified historical period to
assume the semblance of a way of living. The bird imageries adopted by
Tang or Song range from the image of a deified bird to the entire
spectrum of real winged creatures. Thus from the the images of birds, we
can see the cultural transformation in the Tang & Song Dynasties, China.