Songbird Essentials 2 Compartment Sparrow Bird Trap

Sparrow Trap 2 compartment. A great humane trap for controlling English sparrows and starlings. Attach on a Martin pole or place in an environment where you want to control sparrows and starlings - critical to Bluebird and Purple Martin nesting success.
New figure 8-shaped trigger quickly closes the lids on the two side catch compartments. New, totally rust-proof construction with 4-color package that "sells" the benefits of this product.

The manufacture suggest that if you see a sparrow nest to take part of it and put it in the center of the trap then dispose of the rest. This will call the sparrows to the cage.
Another option is to put pop corn to lure them. Once you get one then they will call for more.
The sparrow will sit on the perch and it triggers a mechanism to close the door. There is a one way entrance into the center cage.
Bird organizations will come pick up the sparrows if you call them.
Sparrow are know to be aggressive with other birds and animals.