The puffin carried a leg ring issued by the BTO British Trust for Ornithology.

Ruth Aisling, who's on a mission to reconnect with her homeland after spending more than a decade abroad, flew to an island ...

Ruth Aisling, who's on a mission to reconnect with her homeland after spending more than a decade abroad, set off to to an ...

Ruth Aisling, who's on a quest to reconnect with her Scottish homeland after spending more than a decade abroad, flew to an island about 20 miles from Shetland ...

Nancy A. Youssef is a staff writer at The Atlantic covering national security and the Defense Department. She has written about U.S. national security for more than two decades, including at The Wall ...