| Treatment | Singing | Bird activity Calling | Perching | Foraging | ||||
|---|---|---|---|---|---|---|---|---|
| Wire zone | Border zone | Wire zone | Border zone | Wire zone | Border zone | Wire zone | Border zone | |
| No. birds, Allegheny ROW August 1, 1987 | ||||||||
| Handcutting | 2 | 2 | 1 | 1 | ||||
| Mowing | 4 | 5 | 4 | 2 | 16 | |||
| Mowing plus herbicide | 4 | 5 | 2 | 1 | 2 | |||
| Selective basal | 3 | 6 | 5 | 4 | 1 | 4 | 2 | |
| Stem-foliage | 1 | 1 | 4 | 3 | 5 | 4 | 2 | |
| Foliage | 1 | 4 | 2 | 10 | 1 | 6 | 6 | |
| Total | 5 | 21 | 9 | 21 | 16 | 8 | 17 | 29 |
| %of Total | 4 | 17 | 7 | 17 | 13 | 6 | 13 | 23 |
| No of birds, Piedmont ROW August 8, 1987 | ||||||||
| Handcutting | 2 | |||||||
| Mowing | 1 | 4 | ||||||
| Mowing plus herbicide | 2 | 1 | 3 | 1 | 2 | 6 | ||
| Stem-foliage | 1 | 1 | 6 | 4 | 14 | |||
| Foliage | 1 | 1 | 1 | 2 | 7 | |||
| Total | 2 | 7 | 8 | 9 | 0 | 5 | 23 | 6 |
| % of Total | 3 | 12 | 13 | 15 | 0 | 8 | 38 | 10 |