This app produces 11 tried and true Crow Calls for the avid hunter. Comes with all the sounds you should need for a successful hunt. Just plug in your amplified speaker and happy hunting! For even better results...use a Bluetooth speaker placed away from you to one side or the other. If there is a Crow in the area it will draw it's attention away from you.
On most phones you can long press the sound and make it a ringtone or notification.
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*All Sound Files Are Open Source Files*