1.A fine bird chooses a tree to nestle in -- to choose a master to serve.; Good birds select their roosts.; A man selects a leader whom he would follow.; The prudent bird selects its tree.
flight to quality
...长看俏及派息期望，报告说，集团表现将受惠於投资者「良禽择木」（ flight to quality）的利好效应。
良禽择木