Table 1. Bark adhesion and diameter at breast height (DBH) for trees that showed signs of woodpecker feeding along the Choctawhatchee River where Ivory-billed Woodpeckers were detected, and at three comparison sites where Ivory-billed Woodpeckers were not detected.

Location No. trees measured Mean bark adhesion (kg) Std. dev. Mean DBH (cm)* Std. dev.
Choctawhatchee River 211 4.76 6.85 8.99 5.06
Sougahatchee Creek 117 1.05 1.33 8.65 5.09
Uphapee Creek 100 1.22 1.79 8.17 5.27
Choctafaula Creek 118 1.28 1.48 8.69 6.29