The red-cockaded woodpecker, Picoides boreaiis,is an endangered species that has declined in numbers with loss of nesting habitat. This loss is due partly to the increased prevalence of short rotations in southern pine forests. Data from Mississippi and South Carolina indicate that, for cavity initiation, the species needs living trees averaging approximately 75 years old for loblolly pine (Pinus taeda), and 95 years old for longleaf pine (P.palustris).
Jackson, Jerome A.; Lennartz, Michael R.; Hooper, Robert G. 1979. Tree age and cavity initiation by red-cockaded woodpeckers. Journal of Forestry. 77(2): 102-103.