Researchers have observed adult blue magpies inspecting street lights and porch lights at daybreak and carefully searching out any hidden or dead insects near them.
研究人員就曾觀察到一巢藍鵲成鳥在每天東方既白，即開始逐一探視整夜不熄的路燈和簷燈四周，從燈頂、屋簷，一直到電線桿四周的地面，仔細搜尋躲藏或已死去的昆蟲。