What is the correct term for the condition in which a bird's tail feathers are at risk of damage?

The condition referred to with the term “fret marks” specifically describes the damage that occurs on a bird's tail feathers, often as a result of stress or improper handling. This condition can arise when the bird is in a confined space or when it engages in excessive preening or scratching, leading to frayed or broken feathers. Understanding this term is essential for falconers, as it helps them recognize signs of distress or discomfort in their birds, which is crucial for ensuring their health and well-being.

The other terms, while relevant to bird behavior and care, address different aspects. “Mantling” refers to a bird’s protective posture over its prey, used to shield it from potential threats. “Yarak” is a term used to describe a state of heightened aggression or readiness in a bird, often connected to hunting instincts. “Perch stress” indicates the physical strain that can occur from inappropriate perching surfaces or techniques but does not specifically deal with tail feather damage. Thus, the right term for the condition of tail feather risk is indeed fret marks.