Barred Owl Box Dimensions

Building a barred owl nest box 1 2 sheet 4 x 4 3 4 plywood pressure treated if desired exterior wood glue 1 5 8 ths exterior wood screws 2 4 inch by 1 4 inch all thread bolts to connect perch to nest box several 1 4 inch nuts washers and lock washers 2 6 inch long by 1 1 2 or 2 inch wide.

Barred owl box dimensions.

Barred owl nestlings in a box of the author s design. Have someone help you push the sides together so. Learn what features are best for birds and their safety. Our design is 11 ft3 with with nearly 6 ft2 of floor space.

Barred owl nest box plan and information. 12x13 inch floor minimum 24 inches tall minimum 7x7 inches or wider entrance hole at least 13 inches up from the floor 15 25 feet high off the ground. Violet green and tree swallows 4 x 5 1 2 9 6 1 3 8 w x. Features of a good nest box.

Box height entrance above floor entrance hole height above ground robin phoebe barn swallow 7 x 8 8 6 10 barn owl 11 1 4 x 36 15 3 4 4 6 20 25 barred owl 13 x 11 1 2 23 12 7 x 7 with top rounded 20 30 within 200 of water bluebird great crested flycatcher. Results from research conducted on owl nest boxes of various sizes indicate smaller boxes. 3 2010 boxes in a tree made it clear to me that there had to be a better way. Other designs using wide pine boards were similarly heavy as well as prone to rapid decay.

The barn owl trust a leading authority on barn owls recommends increasing their nest box dimensions by 50 for the american barn owl equating to a floor dimension of 30 x 24 5 ft2 and a minimum of 10 ft3 for a box that is 24 deep. Clutch size phenology for common species. Place 3 4 of wood chips in bottom of box. Photograph by the author.

No perch is necessary and adding one will only give footing to predators. Otherwise you will have problems later. A typical barn owl nest box has a six inch entrance hole that is suitable for a barn owl but too small for a great horned owl and the hole should be approximately four inches above the floor of the box.