3.2 GFWO nest success
The mean height for a GFWO cavity within our study was 2.3 m ± 0.26, the mean DBH of the nesting tree was 52 cm ± 6.2, the mean cavity diameter was 9 cm ± 0.8, the mean depth was 7 cm ± 0.7, and the mean vegetation cover was 43% ± 6.3. Over 25% of GFWO nests were in trees with decay class 1 (Table 1).
Table 1: Nesting tree decay (1 = live tree, 7 = dead, decayed tree), for each cavity nesting bird found within the study. Count and percent of that species within each decay rank are shown for each species of secondary cavity nesting bird, along with the primary cavity nesting bird, the Golden-fronted woodpecker. The data on the Ash-throated and Brown-crested Flycatchers were combined due to similar life history traits between species. Data was collected on the San Antonio Viejo Ranch, East Foundation in south Texas during the summer of 2019.