Wood Duck Nest Cavities in Bald Cypress-Tupelo Gum Stands
We studied availability of natural cavities for wood ducks (Aix sponsa) on 5 areas in 3 southeastern states in 1988-1990 because of U.S. Fish and Wildlife Service (USFWS) guidelines that called for the reduction of nest boxes on National Wildlife Refuges. Selected forested wetlands dominated by bald cypress (Taxodium distichum) or tupelo gum {Nyssa aquatica) were randomly sampled using 0.5-ha plots to estimate the density of cavities suitable for wood duck nesting. Density of suitable natural cavities in live, mature (≥28 cm dbh, ˉx age = 117.6 years) bald cypress-tupelo gum stands...
