How does a musical bow produce sound in Native American traditions?

In Native American traditions, the musical bow is a chordophone consisting of a string stretched between the ends of a curved stick. Sound is produced by plucking, striking, or rubbing the string.1

To amplify the sound, players often use a resonator. Techniques include:

• Mouth Resonance: The player may hold the bow between their teeth and strike the string, using the oral cavity to vary the sound and isolate overtones.21
• External Resonators: Some bows utilize a truncated gourd, a pot, or even a metal bucket attached to the stick to serve as a resonator.21

While the instrument is less common in contemporary Native American music, it has historically been present among various indigenous peoples across the Americas, including those in the Southwest, the Great Basin, and the Tropical Forest.1