Red-billed Blue-Magpie (Urocissa erythroryncha, 红嘴蓝鹊).
A resident bird on Yuelu Mountain: they are not much bigger than other magpies though their long tails give the illusion of a greater size. When one is nearby, other other bids make a considerable fuss. They are known to eat the chicks and eggs of other birds, but this one chanced to predate on an adult Eurasian tree sparrow: it swooped it from the air, pinned it down and slowly pecked it into submission and death. While the magpie killed and feasted, the rest of the flock of sparrows stayed to sound a frenetic alarm. One Chinese blackbird arrived and attempted several dashes against the magpie in a brave but futile attempt to save the unfortunate sparrow.
