Why are bells not commonly used with American Kestrels?

The use of bells with American Kestrels is typically avoided because they must be very light. Kestrels are small raptors, and any added weight can significantly affect their ability to fly and hunt effectively. If the bells are too heavy, they could hinder their natural movements and compromise their agility, which is crucial for their foraging and hunting behaviors.

In falconry, it is important to consider the comfort and capabilities of the bird, and using lightweight equipment helps maintain their natural physical performance. While other options might touch upon relevant aspects of how equipment affects birds, the primary concern for Kestrels is ensuring that any accessories do not adversely impact their flight capabilities. This focus on weight ensures that the bird's hunting proficiency and overall well-being are not compromised during training and while on the hunt.