Currently all that is certain is the time of arrival at certain wintering valleys, and the numbers of various migrating groups. Only one butterfly in the southward migration has been marked and recaptured. In January of 2006 a double-branded crow butterfly was caught in a wintering valley on Taitung's Mt.
目前只確定進入若干越冬蝶谷的時間，和各族群數量，而移入蝴蝶再捕獲的紀錄只有一筆：2006 年 1 月在台東大武山的越冬谷，捕獲一隻 8 月在台東金峰標記的斯氏紫斑蝶，距離串起整個南下遷移路徑還相當遙遠。