mountain bluebird house hole size

Shop Our Selection of Bluebird House Bird Houses For Sale at Gardens Alive. 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.

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They should be set out by February 15.

. So the 1 916 hole is a safe bet and will also exclude almost all starlings. Do not add or buy any birdhouse with a perch. 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.

The entrance size is the most critical dimension for a safe effective bluebird house. In the natural world all three species of North American bluebirdsthe Eastern Western and Mountain Bluebirdsseek tree cavities or woodpecker holes for nesting sites. 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.

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. Mountain Bluebird and Western Bluebird ranges overlap in some areas and Mountains need a 1. 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.

300 apart will ensure an adequate territory size for each mountain bluebird family. 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. Because there are no undesirable species that can access 1916 holes.

Hole position 8 inches up. 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. When placed along roadsides boxes should face away from the road in order to avoid disturbance from vehicles.

It should overhang the entrance hole at a 225 degree angle to provide protection from rain. References and More Information. But today natural cavities can be hard to find.

Toward the top of the front edge and 38 in drill a 18 hole for a nail or a screw. Latch nail recess floor 11½ Side SideTop Bottom Back. What size hole is needed for a bluebird house.

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. Unfortunately bluebirds rarely nest in cities large towns or close-in suburban areas. Some Westerns are larger than others.

The size of the entrance hole can be adjusted from 1¼ to 1 38 inches by bending a stiff wire that runs from side to side across the U-shaped entrance hole. Mountain Bluebird and Western Bluebird ranges overlap in some areas and Mountains need a 1 916 hole. The entrance size is the most critical dimension for a safe effective bluebird house.

All this is further explained here. 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.

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. The hole should be 1 12 inches in diameter for eastern and western bluebirds though mountain bluebirds occasionally prefer slightly larger holes that. 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.

Ad Find Deals on bluebird house mounting pole in Backyard Birding on Amazon. Western and Mountain Bluebirds use a 1916 round opening or 1316 slot entrance. 1½ for Western Bluebirds 1⁹₁₆ for Mountain Bluebirds ¼ vent pivot.

Ad Our Bluebird House Is The Perfect Addition To Your Garden Fruit Pest Control Project. The top of the birdhouse should be easily opened for cleaning. Competition for these limited sites is a huge problem especially in early spring.

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. Old and rotting trees often are removed.

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. For a round entrance hole eastern bluebird boxes should be 1 12 inches in diameter and 1 916 inches for mountain and western bluebirds. 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.

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. 15 38 cm 6 15cm. 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.

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