Which of the following is an example of a non-native bird that is not protected?

The house sparrow is a non-native bird that is not protected in the United States, including Illinois. It was introduced from Europe in the 19th century and has since become widespread across North America. Unlike many native bird species that are protected under various wildlife and conservation laws, the house sparrow is classified as a non-native, invasive species, which often leads to fewer legal protections. This allows for management practices that aim to control its populations, as it can compete with native birds for resources and nesting sites.

In contrast, the goldfinch, cardinal, and blue jay are native birds to North America and are generally protected, as these species are part of the natural wildlife that conservation efforts strive to preserve. Understanding the classification and protection status of these bird species is essential for responsible wildlife management and pesticide application practices.