Wooden Bird Call.

Operate this easy-to-use bird call to summon all sorts of birds into view at the park or in your own backyard.
To use, just hold the wood part in one hand and the brass part in the other. Twist the two parts together similar to the way you would turn a key in a lock.
The squeaking sound produced attracts the curiosity and attention of many different species of birds.
This real avian-friendly whistle is not a toy