What are Stress Bars on Bird Feathers?

Stress bars are lines that run horizontally across the width of a feather, and appear as the feather is growing. They are most commonly seen on tail feathers and can be caused by a variety of reasons including: – Nutritional deficiencies– A stressful experience– Trauma to the feather as it’s growing– Illness All of theseContinue reading “What are Stress Bars on Bird Feathers?”