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| Type of Bird |
A Size of Floor (inches) |
B Depth of Box (inches) |
C Height of Entrance above Floor (inches) |
D Diameter of Entrance Hole (inches) |
Height above Ground (feet) |
|---|---|---|---|---|---|
| Screech Owl | 8x8 | 12-15 | 9-12 | 3 | 10-30 |
| Saw-whet Owl | 6x6 | 10-12 | 8-10 | 2 1/2 | 12-20 |
| Barn Owl | 10x18 | 15-18 | 4 | 6 | 12-18 |
