Invasive house sparrows are terrible! So prolific that our poor native bluebirds really struggle. It takes gobs of time and active management to ensure a bluebird couple can establish a nest, but even then the threat isn't over. They need your help!

I use two-hole boxes. With the extra hole they can generally defend the nest. I get mine from JackQuest on Etsy. Well priced, masterfully built.

Not an AD, but he is part of my naturalist chapter. I don't get anything. I just like supporting a friend, cool dude, and bird advocate who does great work.

https://www.etsy.com/listing/1439636148/deluxe-cedar-bluebird-nesting? #easternbluebird #missouri #nestingseason #nestbox #NotAnAD