The average lifespan of long-tailed ducks is 15.3 years. A single case of an adult male reaching the age of 22 years in the wild has been reported. No extensive studies on lifespan in captivity have been conducted. Several studies suggest that longevity is linked to food availability, stable environment, absence of disease and toxic materials such as lead and mercury.
Average nesting success is 30% in long-tailed ducks and on average, 10% of ducklings survive to 30 days old. Duckling survival, however, is highly variable to location of breeding and fluctuations in breeding environment. Average survival post-nesting for females is approximately 74%.
Status: wild: 22.7 (high) years.
Status: wild: 15.3 years.