This brief video perches readers atop the precipitous cliffs of Spitsbergen Island where two field assistants snag Brünnich’s guillemots from narrow ledges to track the health of a breeding colony.  (For more details on their work, see  On the brink: Life as a field assistant.)

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Field tech secures Brünnich’s guillemot just snagged from narrow ledge along high cliffs of breeding colony. © Randall Hyman