The most common bird on Cangqiong Star is the Pure Light Sparrow, while the most common bird on Blue Star is the sparrow.
The people of Blue Star once regarded sparrows as one of the four pests and massively hunted them, nearly causing the regional extinction of the species and resulting in the impurity of the surviving sparrows' bloodlines.
The instigators soon paid a heavy price for this: massive reductions in food production led to famines and shook the foundations of the nation.
From a strategic point of view, the number of Pure Light Sparrows represented Xiao Jiu's greatest combat strength. Unity is strength; the strong collective will could annihilate even a Giant Dragon. Naturally, Chen Fei did not want to see Xiao Jiu's kin turned into roast bird skewers; if in the next battle Xiao Jiu were to call out but no sparrows responded because they had all been eaten, that would really put them at a disadvantage!
Is this little bit of gluttony really that important?
