size: 1.63 MB, MIME type: image/jpeg) Description English: A habitat group diorama at the Zoological Museum (now Bell Museum) of the University of Minnesota, showing Boreal (Hudsonian) and Black-capped Chickadees , a Downy Woodpecker , and a White-breasted Nuthatch Date 1920 ( 1920 ) Source 1921 Minneapolis Audubon Society calendar, in