Those bluebird feeders with a one-and-a-half-inch entrance hole seem like a great way to offer supplemental foods like mealworms and raisins while excluding invasive European Starlings and other large birds from gobbling up all the expensive fare. But do they really work? Well, have a look for yourself…
![Eastern Bluebird Eating Mealworms An Eastern Bluebird eating mealworms in a homemade feeder with a one-and-a-half-inch entrance hole at each end.](https://www.susquehannawildlife.net/wp-content/uploads/2022/12/Bluebird-Mealworm-Feeder_7773-Copy.jpg)
![Female Eastern Bluebird Female Eastern Bluebird inside the feeder enclosure.](https://www.susquehannawildlife.net/wp-content/uploads/2022/12/Bluebird-Mealworm-Feeder_7762-Copy.jpg)
![Male Eastern Bluebird A male Eastern Bluebird inside the feeder enclosure.](https://www.susquehannawildlife.net/wp-content/uploads/2022/12/Bluebird-Mealworm-Feeder_7777-Copy.jpg)
![Female Eastern Bluebirds Mealworms drawing a crowd.](https://www.susquehannawildlife.net/wp-content/uploads/2022/12/Bluebirds-Mealworm-Feeder_7780-Copy.jpg)
![Male Eastern Bluebird Mealworms "To Go".](https://www.susquehannawildlife.net/wp-content/uploads/2022/12/Bluebird-Mealworm-Feeder_7778-Copy.jpg)
There you have it. Feeders like this one are available commercially, so you don’t have an in-house wood butcher to get one. We’ve heard a rumor that Santa makes them too!