mountain bluebird house hole size

One major difference between making a bird house for Eastern Bluebirds versus one for Mountain or Western Bluebirds is the entrance hole size. When placed along roadsides boxes should face away from the road in order to avoid disturbance from vehicles.

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The powder-blue male Mountain Bluebird is among the most beautiful birds of the West.

. Unfortunately bluebirds rarely nest in cities large towns or close-in suburban areas. An ideal nest box for bluebirds has a sanded maximum 38 cm 1 916 inches diameter entrance hole approximately 50 cm 2 below the front roof top. They should be set out by February 15.

Bluebird houses should be mounted at a height of from 5 LOCATION to 7 feet measured from the ground to the floor of the Selecting a suitable location for the bluebird house is of house. The hole should be 1 12 inches 38 cm in diameter for eastern and western bluebirds though mountain bluebirds occasionally prefer slightly larger holes that are 1 916 inches 40 cm in diameter. Entrance Hole The entrance size is the most critical dimension for a safe effective bluebird house.

10 Front ½ 14 6½ 5 5 5 9 2½ 7 82 10 ¼ 11 ¼ 10 6½ ¼ 9 ³₁₆-deep rain groove. 3 rows When building or buying a bluebird house make sure you consider the size of the entrance. Bluebirds prefer a house that has and entry hole of 1 12 inches for eastern and western species and 1 916 inches wherever mountain bluebirds may be.

Drill a 1 916 diameter entrance hole located 10 above the floor to top of hole. Some Westerns are larger than others. Eastern bluebird houses can also have a 1 38 x 2 14 inch vertical oval hole or a 1 18 inch horizontal sparrow-resistant slot entrance at.

If competition with tree swallows is an issue the houses may be placed in pairs 15-45m 5-15 apart as tree swallows will occupy one of the nests and allow mountain bluebirds but not tree swallows into the other. So putting a small entrance hole on a nest box cant be an effective strategy for creating a sparrow-resistant bluebird house. The floor should be between 4 12 to 5 12 inches square and the floor should be 5 to 8 inches below the entry hole.

6 to 10 inches above the house floor. If House Sparrows become a problem consider drilling a second entrance hole beside the first one so that there are two separate but identical holes on the front panel to enable bluebirds to better defend boxes from sparrows. When youre ready to build a birdhouse one of the most important considerations you must make is the birdhouse hole sizeWhile the floor space entrance height and roof height are also important birdhouse dimensions it is the diameter of the entrance hole that will most accurately determine which birds find the house attractive and which birds can use the house.

Build the western and mountain bluebird nest box with red cedar pine or almost any soft wood. Latch nail recess floor 11½ Side SideTop Bottom Back. Make a 5 by 5 floor inside dimensions and a 12 floor to ceiling height inside front.

For the former you want your hole diameter to be either a 12 inch round hole or a 1 38 x 2 14 inch vertical oval hole whereas the Western or Mountain Bluebird requires a slightly larger round hole size of 1 916 inches or use the same. During the winter Mountain Bluebirds often gather in large flocks even by the. Do not add or buy any birdhouse with a perch.

Cut the front of the box 5 wide and 10 34 long with an entrance hole a 1 12 hole for eastern bluebirds or western bluebirds and 1 916 hole where ranges for the two overlap with mountain bluebirds whose center is 2 from the top and 2 12 from each side. References and More Information. What size is a bluebird house.

Mountain Bluebird and Western Bluebird ranges overlap in some areas and Mountains need a 1 916 hole. Because there are no undesirable species that can access 1916 holes. The distance of the floor from the bottom of the entrance hole in a standard bluebird box is typically 5 to 6 inches.

The dimensions of the floors in traditional bluebird boxes are typically 4-by-5 inches. Toward the top of the front edge and 38 in drill a 18 hole for a nail or a screw. 15 inches 156 inches for mountain bluebirds Entrance Height.

For example eastern bluebirds need an entrance hole that is at least 1 12 inches in diameter while the smaller house sparrows can enter through holes as small as 1 316 inches in diameter. Fortunately house sparrows seem to prefer to nest in boxes with round holes rather than boxes with slots or oval entrance holes. It should overhang the entrance hole at a 225 degree angle to provide protection from rain.

Old and rotting trees often are removed. In the natural world all three species of North American bluebirdsthe Eastern Western and Mountain Bluebirdsseek tree cavities or woodpecker holes for nesting sites. Use wood rough-cut on both sides so that birds can grip both interior and exterior surfaces.

Hole position 8 inches up. Hole size of 1-12 is for that of Bluebirds and Tree Swallow so to decrease the hole size from a safe 1-12 to 1-115 can deter sparrows. Living in more open terrain than the other two bluebirds this species may nest in holes in cliffs or dirt banks when tree hollows are not available.

But today natural cavities can be hard to find. The hole should be 1 12 inches in diameter for eastern and western bluebirds though mountain bluebirds occasionally prefer slightly larger holes that. Sparrows can do horrid terrible things to the eggs or young so its important they can never enter a bird house intended for say a Bluebird with a 1-12 inch hole size.

So the 1 916 hole is a safe bet and will also exclude almost all starlings. For a round entrance hole eastern bluebird boxes should be 1 12 inches in diameter and 1 916 inches for mountain and western bluebirds. Competition for these limited sites is a huge problem especially in early spring.

The entrance size is the most critical dimension for a safe effective bluebird house. 1½ for Western Bluebirds 1⁹₁₆ for Mountain Bluebirds ¼ vent pivot. 300 apart will ensure an adequate territory size for each mountain bluebird family.

The best dimensions for bluebird houses are. It often seeks its food by hovering low over the grass in open fields. Western and Mountain Bluebirds use a 1916 round opening or 1316 slot entrance.

Its been shown that while a Eastern Bluebird sees more success nesting in a 1-12 hole how big a Bluebird house should be for the Mountain and so too the Western would be is anywhere between 1-916 to 1-1316 Big as these holes may seem this comes out of long research between the species. The top of the birdhouse should be easily opened for cleaning. Nestboxes for Eastern Bluebirds should have a round entrance hole measuring 1½ to 1916 in diameter or a 1⅜ x 2¼ vertical oval hole or a 1⅛ to 1316 horizontal slot entrance.

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