SAV 2013 (0)
| 0 - 10% cover (very sparse) |
| 10 - 40% cover (sparse) |
| 40 - 70% cover (moderate) |
| 70 - 100% cover (dense) |
Stafford SAV 2013 (1)
| 0 - 10% cover (very sparse) |
| 10 - 40% cover (sparse) |
| 40 - 70% cover (moderate) |
| 70 - 100% cover (dense) |
Lancaster SAV 2013 (2)
| 0 - 10% cover (very sparse) |
| 10 - 40% cover (sparse) |
| 40 - 70% cover (moderate) |
| 70 - 100% cover (dense) |
Middlesex SAV 2013 (3)
| 0 - 10% cover (very sparse) |
| 10 - 40% cover (sparse) |
| 40 - 70% cover (moderate) |
|