These common birds pose an unexpected risk to your native ecosystem.

The Bactrianus sparrow, which is confined to the Middle East and to the Central Asian steppes, is currently classified as a house sparrow subspecies (although some authorities think it’s a separate ...

When I first began bird watching (“birding”) in Washington State, I quickly learned that some birds are more equal than others. Some, like the house sparrow, Passer domesticus, are alien invasive ...

The house sparrow is a highly invasive pest in North Carolina, and bluebird enthusiasts frequently throw their eggs out and remove their nests to keep them from overtaking the nestboxes that bluebirds ...