Which of the following is an example of an endangered species in Minnesota?

The Topeka Shiner is an example of an endangered species in Minnesota because it is a small fish that has experienced significant population declines due to habitat loss, water pollution, and changes in land use. This species is protected under state and federal laws due to its vulnerable status, and conservation efforts are in place to help restore its populations.

In contrast, the other species listed do not fall into the same category of endangerment in Minnesota. The Common Blue Butterfly, while it may face habitat challenges, does not have the same level of recognized endangerment. The Black-capped Chickadee and the American Robin are both common and widespread species in Minnesota and are generally considered abundant, hence they do not qualify as endangered. Understanding the status of various species is crucial for conservation efforts and to promote biodiversity in their ecosystems.