During summer, the European starling has a yellow beak and a glossy black body with iridescence. Photo by Rhododentrites (creativecommons.org/licenses) Species ...

Great efforts have been made to curtail the introduction of exotic species into the wild. One reason is because some become too successful, threatening the well-being of native species. Many plants ...

This sociable bird was introduced from Europe to New York in 1852. It’s common throughout most of North America, although its numbers have declined both here and abroad. The male house sparrow has a ...

European starlings, an invasive species in the U.S., lay blue eggs often mistaken for those of bluebirds or robins. Unlike native birds, starlings outcompete local species and are not protected by law ...

Great efforts have been made to curtail the introduction of exotic species into the wild. One reason is because some become too successful, threatening the well-being of native species. Many plants ...