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sax-zim bog

October 18, 2018
Steve Kolbe, NRRI research scientist, nails a birdhouse to a tamarack tree in the Sax-Zim Bog Wednesday afternoon to encourage boreal chickadees to nest. Bob King / rking@duluthnews.com
Scientists hang 500 birdhouses in Sax-Zim Bog to study boreal chickadees
October 18, 2018 - 7:16pm
February 24, 2018
A great gray owl flies through the woods on a winter day at the Sax-Zim Bog. Birders come from across the country and around the world for a chance to see these large owls at the bog. Photo by Mark "Sparky" Stensaas
Birders from across the country bolster their ‘life lists’ at the Sax-Zim Bog
February 24, 2018 - 7:05pm