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Barn Owl Nest Boxes

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Barn owls are among the most beneficial birds a farmer can attract.  A family of barn owls is very tolerant of humans, yet during a single nesting season will consume as many as two thousand rodents!  Multiple nesting sites around your operation will not only reduce your rodent populations but your pesticide expense as well.
 
Bio-Diversity's proven design has become the standard for owl boxes in viticultural areas in California.  These four models are all made from 1/2 inch CDX plywood.  All have clean-out doors, a 5 1/2 inch entrance for the birds, and sufficient ventilation and drainage.  All but the Basic Nest Box are weatherproofed with water proofing.
 
Like all out products, these nest boxes can be shipped UPS.

Freestanding Nest Box for Barn Owls

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A freestanding nest box installed in a vineyard in Lodi, California

The Freestanding Nest Box for Barn Owls is our largest nest box (35 lbs.).  A removable top allows this nest box to be easily attached to a post before it is installed in a field.  It is designed with a maximum of interior space to induce the female to lay more eggs.  The sun baffle keeps the nest box in the shade while keeping rain water from entering the box through the 16 ventilation holes that perforate the roof. 
 
An interior partition separates the entrance from the nesting quarters.  A one inch dowel provides for perching or roosting, and permits the young to get outside the box and exercise when they are in preparation for their first flight.  An additional perch on the inside encourages adult owls to use the box as a roost during the off-season when nesting is not taking place. 
 
The front measures approximately 24 by 24 by 16 inches deep.
Nest Box  $70.00
Sun Baffle  $8.00 

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The freestanding nest box

Tree Nest Box for Barn Owls

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A Tree Nest Box installed on a farm near Winters, California.

The Tree Nest Box for Barn Owls is designed to be installed, well, in a tree.  (Where else?)  It is a vertical arrangement with the door above the nesting area.  An interior perch below the entrance assists the young as they scramble out into the world.
 
A mounting board is included with the box.  With the board bolted horizontally across the back of the box, the box may be lashed to a tree trunk, as shown on the left.  With the board bolted vertically to the box, the nest box can be easily attached to a tree with lag screws (a much easier way to install) or be bolted a pole to be installed out in the open.
 
Ventillation and drainage are considered in the design. Annual cleaning is achieved through the clean out door that is built into all our owl nest boxes. The box measures 23 inches high by 16 inches wide by 16 inches deep.  The shipping weight is 27 pounds.
Tree Nest Box.. $56.00

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Our tree nest box is completely sealed, with a top that is not removeable.

Horizontal Nest Box for Barn Owls

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A horizontal nest box standing in a vineyard near Lodi, California,

Our Horizontal Nest Box for Barn Owls is our most versatile design.  In its simplest form it can be installed on either the inside or outside wall of a building.  Just as easily, it can be placed in the rafters of a barn or high inside a silo.  It is 16 inches tall, 16 inches deep and 23 inches long.  An interior partition separates the entrance from the nesting quarters.  The nesting area is 16 by 16 inches.  Mounting boards are not included.
 
With its optional features, the Horizontal Nest Box and be installed on a pole, similar to the Freestanding Nest Box.  (Seen on left.) Top and back sun shields provide relief from hot spring and summer afternoons.  The exterior perch permits the young to emerge from the nest to exercise.  These features can be added as needed.

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A horizontal nest box installed on the wall of a building.

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This horizontal nest box is decked out with all the frills, the optional perch and sun shades.

Horizontal Nest Box... $62.00           Perch...  $8.00      
Top sun shade...   $8.00          Back sun shade... $4.00

Freestanding Nest Box for Barn Owls

FSOwlBox3.jpg
A freestanding nest box installed in a vineyard in Lodi, California

The Freestanding Nest Box for Barn Owls is our largest nest box (35 lbs.).  A removable top allows this nest box to be easily attached to a post before it is installed in a field.  It is designed with a maximum of interior space to induce the female to lay more eggs.  The sun baffle keeps the nest box in the shade while keeping rain water from entering the box through the 16 ventilation holes that perforate the roof. 
 
An interior partition separates the entrance from the nesting quarters.  A one inch dowel provides for perching or roosting, and permits the young to get outside the box and exercise when they are in preparation for their first flight.  An additional perch on the inside encourages adult owls to use the box as a roost during the off-season when nesting is not taking place. 
 
The front measures approximately 24 by 24 by 16 inches deep.
Nest Box  $70.00
Sun Baffle  $8.00 

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The freestanding nest box

The Basic Nest Box for Barn Owls
 

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Simple but effective, the Basic Nest Box attracts owls as well as any other one.

Our Basic Nest Box for Barn Owls satisfies all the requirements of the owl, but without the frills. Like the Tree Nest Box, the Basic Box is versitile and can be installed to meet a number of applications: on a pole, on a wall, or in a tree. 
 
A hinged clean-out door facilitates maintenance.  The box measures 19 inches high by 12 inches wide by 12 inches deep.  A perch just below the entrance helps the young get up and out the door.  Ventilation and drainage are provided for in the design.
 
This box comes without paint or preservatives.
 

Basic Nest Box... $39.00

Bio-Diveristy Products 
 10112 E. Woodbridge Rd.
 Acampo, CA 95220
(209) 369-8578