{"id":573429861,"date":"2020-12-18T14:54:00","date_gmt":"2020-12-18T20:54:00","guid":{"rendered":"https:\/\/www.winnipegfreepress.com\/our-communities\/souwester\/2020\/12\/18\/early-arrival-dangerous-for-purple-martins"},"modified":"2020-12-18T14:56:33","modified_gmt":"2020-12-18T20:56:33","slug":"early-arrival-dangerous-for-purple-martins","status":"publish","type":"post","link":"https:\/\/www.winnipegfreepress.com\/our-communities\/souwester\/2020\/12\/18\/early-arrival-dangerous-for-purple-martins","title":{"rendered":"Early arrival dangerous for purple martins"},"content":{"rendered":"<p>A bird familiar to Manitobans is being studied by the University of Manitoba with regards to how light pollution can kick off a too-early migration northward in the spring.\nThe purple martin, a songbird well known for nesting communally in martin houses, is the subject of a study to be published by the Avian Behaviour Consultation lab in the department of biological sciences at the U of M that shows artificial light at night has an impact on the timing of spring migration, as migratory birds use light cues to initiate their journey.\nFormer biological sciences honours student Reyd Smith led the project with assistance from honours student Maryse Gagn&eacute;, and advised by associate professor Kevin Fraser, who runs the ABC 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