Category: Bluebirds

house finch and a bluebird for article about whether house finches are a threat to bluebirds

Are House Finches a Threat to Bluebirds? Surprising Answers

House finches are not a direct threat to bluebirds. They are not known for attacking bluebirds or invading nest boxes. However, there might be an indirect risk that house finches pose when it comes to bluebirds, and that involves the transmission of a common bacterium found in house finches.

house sparrow nests

House Sparrow Nests

House sparrow nests are usually found in nest boxes or other types of cavities and are constructed using various nesting materials such as straw, grass, feathers, litter and fiber. Other characteristics of a house sparrow nest are its size and tunneling architecture.