Frailty: measurement and utility in avian studies

Key Points

• The aim is to explore how frailty, often used in human studies, can apply to avian ageing research.
• Examined the concept of frailty in the context of avian studies.
• Discussed measurements of frailty through various simple health performance metrics.
• Outlined potential applications of frailty indices in studying life histories and environmental impacts.
• Frailty indices can effectively capture age-specific health in birds.
• These indices may reveal important insights into the ageing process of wild animals.
• Limitations and caution in interpreting frailty measures were emphasized.