Even the bird 's nest within the Bird 's Nest was presented in green color .
It matches the environmentally conscious design of the whole Olympic Village such as the use of solar power for some apartments and an advanced rainwater recycling system in the main stadium .
Even the bird 's nest within the Bird 's Nest was presented in green color so that it matches the environmentally conscious design of the whole Olympic Village such as the use of solar power for some apartments and an advanced rainwater recycling system in the main stadium .