Below are free diy PVC bird box plans that can be used to attract bluebirds, swallows, chickadees, nuthatches, warblers, woodpeckers, wrens, and other birds to your backyard or garden. boxes as well as other nestboxes that have a small interior volume. To work, the line must be installed at the beginning of the nesting season, before any sparrows lay claim to the bluebird box. House Sparrow Nest in Bluebird Nest Box. Bluebird House Plans. House sparrow problems, more. Another one-board bluebird house plan is here (pdf). To keep starlings out of a bird house, the hole must be 1. org. A ready-made, weather-resistant Sparrow Spooker is now commercially available from Sparrowtraps. House sparrows, also called English sparrows, are aggressive birds that compete with bluebirds for nesting boxes or b. 25"H Slot Opening for Western Bluebirds; Weight: 4 lbs. Consider using a PVC-style bluebird house, like the “Gilbertson” nest box. 25"H. Gilbertson PVC Box. Perfect, Our Favorite Dame Watching Binoculars, Squirrel-Proof Feeder & Hummingbird Feed Get Our Reviews:Also the nest tray takes cubic inches away from the cavity which also discourages sparrows. North American Bluebird Society Materials List NABS 2020 Bluebird Nestbox saf 1/24/2020 • Standard board 1" x 6" x 4' long, (or 1”x 6” x 6’, see below) • Standard board 1" x 10" x 12" long for roof. Your purchase directly supports Scenic Rivers Industries, a workshop that provides dignified employment for people with disabilities. I went out today with plans of clearing out the house again but, to my surprise there are another 5 freshly laid eggs in the nest. Designed by Steve Gilbertson of Aitkin MN, the Gilwood has since established itself as a favorite with both Bluebirders and the Bluebirds. Free Bluebird Your Plans for Eastern, Western & Berg Doves. Eastern bluebird houses can also have a 1 3/8 x 2 1/4 inch vertical oval hole or a 1 1/8 inch horizontal sparrow-resistant. Sparrow spookers sparrowtraps net. This birdhouse for bluebirds help them defend their nest better. com. Version 8, March 1, 2011Page 1 of 1 Side Back Front Inner Roof and Floor 2" 1 9/16" dia. Below are few great books about bluebirds, life history and how to attract them to your backyards for feeding and nesting:. Skip till web. Made in the USA, available exclusively at Duncraft. Made in the USA! Sparrow-Resistant Western Bluebird House Dimensions: 8. 99 USD Regular price Sale price $79. The most common price range for bluebird houses is between $24 and $40. 3 Proven Roads To Get Free of Starlings TODAY . 5”x4. Wrens and Eastern bluebirds can fit into smaller entrances than the larger house sparrows and starlings. Although not fully Sparrow proof, it has been proven to have the least desirability to them when compared to any other nesting box designs. Free bluebird house plans with video instruction. 75"W x 10"H. 7-1/4 x 7 x 9-7/8 inches. There are several ways to discourage them from using nest boxes, ranging from boxes specifically designed to dissuade sparrows to traps to eliminate them. These will be used for the 1 1/2" galvanized screws that will function as hinges for the front door. Select you need to have success with bluebird houses! Includes PDF plans, DIY video tutorials & the BEST pre-made nest fields. Front;. House Sparrow. (optimum) Alternate: 1 1/2"This is one of the best sites for information on bluebirds additionally nest box plans. Install the front. Search. • Western and Mountain Bluebirds prefer a 1 9/16 inch round opening or 1 3/16 inch slot entrance. Plans are open as PDF's and inclusion easy step-by-step video. Cut a 4 by 8 1/2 inch plank of wood for each side of the house. With these tips and tricks to sparrow-proof. only 4 inches/side available Eastern Bluebirds. Courtesy odell/birds & blooms an eastern bluebird chases away a house sparrow. Facebook-f Pinterest-p. Look for other clues such as missing or pierced eggs, and pecked or dead nestlings lying under the box. It has a square door to one side of the trap which makes removing birds somewhat more difficult than the round, centered door on the DRST. Modern BirdhouseStep 8. Xbox Bluebird Nestbox Drawn by: Fred Stille, Sr. Add to cart . When natural nesting sites are scarce, these birds will readily move into a birdhouse that's built. Find more bird houses plans or discover more bird houses and bird feeders. House sparrow problems, more. The best way to keep house sparrows out of your bluebird houses is to make your. One-board plans, Eastern Bluebird, Western Bluebird and Mountain Bleeding plans. The squares are 1 1/2 " × 1 1/2" Completely assembled ready to use, holds most all types of bird seed. Unique Birdhouse Plans. Plans for a simple. Everything to need to take success with bluebird home! Includes PDF plans, DIY video how-to & the BEST pre-made nest boxes. Water: All birds need fresh water for drinking and bathing, and a clean water source can make a yard even more. Durable tan and green recycled plastic. The entrance hole should be 1-1/2" in diameter and placed near the. The best “sparrow-resistant” bluebird house (My recommendation) For most cases, my top recommendation for sparrow-resistant bluebird houses is the Gilbertson PVC pipe-style nest box This nest box has been shown over and over again to deter house sparrows and be attractive to bluebirds, specifically eastern bluebirds. Everything you need to have success with bluebird housings! Includes PDF plans, DIY video tutorials & the BEST pre-made nest boxes. $10. Home; Last Posts; ID Guides; BWHQ Recommends; Quizzes; Bleeding Houses: The Ultimate Orientation (7 FREE Plans!) So you want a bluebird house include own. Discount applied at checkout. Two side pieces, 6 x 9 inches, just like the front, except for the. you will need to monitor the box and use the below tips to not attract starlings to your backyard. Bluebird Nest Box;. For cavity-nesting birds, houses can provide the perfect place to build a nest and nurture. Complete you need to have success with bluebird houses! Incl PDF plans, DIY video tutorials & the BEST pre-made snooze boxes. Free Bluebird House Plans for Eastern, Western & Mountain Bluebirds. 125"L x 5. Monitor your bird houses regularly to remove House Sparrow nests. This house is very attractive to the Bluebird species as well as Wrens, and other small bird species. SRP: $67. Contents [ hide] Best Bluebird Feeder Reviews. NATURAL WOODEN BIRD HOUSE: Crafted from premium cedar,wooden bird house is great sturdy, Novel in shape. Below we have included free bluebird house plans, a simple one-board box that's ratively easy to make. Made in the USA. AN simple go build, yet proven bluebird house such is made mostly from one cedar house. Sparrow Resistant Wooden Bluebird House. Make the hole large enough for a double-headed nail to slip in and out easily. 12 Month Prepaid Bird Watching Subscription – 3 patches a month. It is thought that the shallow depth of the box, combined with the plastic wall material is not like by sparrows. Two venting options. 1. 5" or smaller. There are several ways to discourage them from using nest boxes, ranging from boxes specifically designed to dissuade sparrows to traps to eliminate them. Make a 4″ by 4″ floor (inside dimensions) and 9″ floor to ceiling height (inside front). A two-hole box is not technically a HOSP-resistant box. Mount the nest box at least five feet off the ground, not too close to buildings, and at least 50 feet away from brushy or wooded areas. Tree & Violet Green Swallow Birdhouse. Check out this video on Dean Rust's site (Dean is a county coordinator for the PA Bluebird Society). Once the bluebird babies are 7 to 10 days old you can change the nest to keep it parasite free. Home;. Make those cuts (first cut should be on a 15-degree angle, the rest will be straight cuts). 25"H; Weight: 4 lbs. Home sparrow problems, more. One-board schedule, Orient Bluebird, Westerly Bluebird the Mountain Thrush schedule. To this post, I may included everything you need to get about einholen started with bluebird houses:. DutchCrafters Small Sparrow Resistant Bluebird Post Mount Poly Bird House - Choose Your Colors - Amish Made in America. Although no nestbox suitable for bluebirds is sparrow-proof, some believe that House Sparrows are often comparatively more reluctant to use Gilbertson PVC boxes as well as other nestboxes that have a small interior volume. The edges of of the front piece should be flush with the underside of the base and outside walls of the nestbox. Drill a 1 1/2″ diameter entrance hole located 7″ above the floor (to. How to Sparrow-Proof a Bluebird House. . Making Nest Boxes Sparrow Resistant (PDF) (by Lee Pauser) will help you keep sparrows out of your boxes. Prevent Heat Stress. 12 Month Prepaid Bird Watching Subscription – 1 patch a month. Sand all edges prior to assembly. With sheltered boxes like this, a flock is more likely to move in this time of year. NABS Fact Sheets & Plans. 3. Depth of the compartment is 6-¾" width is 4". We utilize two types of predator guards to help limit predation of our bluebird nest boxes. The tree and violet green swallow birdhouse has a 5″ by 5″ floor, an 8″ floor to ceiling height and a. Available bluebird house plans in video instruction. Monitor nest boxes every day. 125"H; 5. Free bluebird house plans with record instruction. Opening: 4"L x 1. 25"H. 75"H each. Opening: 4"L x 0. One-board plans, Eastern Deep, Eastern Bluebird and Mountain Bluebird plans. Another one-board bluebird house plan is here (pdf). Buy Bird Houses by Mark Sparrow Resistant Bluebird Bird House at Chewy. Free bluebird house plans with view instruction. Build the eastern bluebird birdhouse with red cedar, pine, or almost any soft wood. 99 USD Unit price / per . Discourage sparrows from overtaking your bluebird trail thanks to this Sparrow-Resistant Eastern Bluebird House. Basic Bluebird Nest Box. 2. 2. $120. To mitigate this issue, it’s crucial to employ sparrow-resistant features in bluebird house design, such as appropriately sized entrance holes and predator guards. This cypress house features a slanted front to further discourage sparrows. But Linda Violett of California has found that somehow Western bluebirds seem to learn to control the box, despite HOSP competition. Potential Harm Caused by Sparrows. Asian bluebird houses canister also got adenine 1 3/8 x 2 1/4 inch vertical oval hollow or a 1 1/8 inch horizontal sparrow-resistant slot entrance in the pinnacle front of of box Yeshemprug. Many Bluebirders believe that the slotted entrance makes this house sparrow resistant. 5"L x 7"W x 10. Dimensions: 5. Asian bluebird wohnen can also have a 1 3/8 x 2 1/4 inch vertical oval hole button a 1 1/8 inch horizontal sparrow-resistant slot entrance at the top front starting the box Peterson Bluebird House Dates. For instance, cavity-nesters need varying. Dried lawn clippings work great for nest replacement. Although not fully Sparrow proof, it has been proven to have the least desirability to them when compared to any other nesting box designs. Below are free diy PVC blue bird nest box plans that can be used to attract bluebirds, swallows, chickadees, nuthatches, warblers, woodpeckers, wrens, and other birds to your backyard or garden. If PVC boxes are paired with a wooden box, sparrows tend to choose the wooden box. 15) Free American Robin and Eastern Phoebe Bird House Plans. Usage: Outdoor. Free Bluebird House Plans. Some have found that if PVC boxes are paired with a wooden box, House Sparrows tend to choose the wooden box. Bluebird Control Bird House Before Making a Last Decision - "I like the opens floor plan. Free bluebird house plans with video instruction. The holes should be positioned in the top left and right corners. The house itself is 8" long by 4. 6. Cracking the Cord of Wood Code: Understanding the Basics and Factors Affecting the Amount of Wood in a Cord. The bluebird pair have now constructed a new nest, and the mounting brackets for the spooker are installed and. 43) Modern Cardinal Birdhouse Plan. Free bluebird house plans with tape instruction. This spooker is readily mounted on any style box. Close this search boxed. 5"W x 15"H. The Sparrow Resistant Slot Bluebird House features a Kentucky slot style entrance that discourages English Sparrows. In 2014 we had two nesting bluebird couples. PDF Guides for Bluebird House Plans (5 total) #1. 12 Month Prepaid Bird Watching Subscription – 3 patches a month. 95 Sold Out. The 22-degree bevel sets the angle of the slope for the slant front birdhouse, and it will match the angled cut for the side pieces (C). Once the bluebird babies are 7 to 10 days old you can change the nest to keep it parasite free. Bluebird Nestbox Version 2, June 19, 2011Page 1 of 1 Roof Front/Door Side Floor Back Pivot screw (each side) Apply caulk to top of sides and to top of back before attaching roof. House Sparrows are vicious competitors. 44) Hanging DIY Birdhouse Plan. 969 cm) entrance hole in the front piece. If PVC boxes are paired with a wooden box, sparrows tend to choose the wooden box. Another one-board bluebird house plan is here (pdf). Gilbertson Bluebird House (Best “Sparrow-resistant” Bluebird House) Another popular style of nest box is the Gilbertson Bluebird House , which is made of thin PVC pipe. Xbox Bluebird Nestbox Drawn by: Fred Stille, Sr. The next step to build a bluebird house is to cut part D from a 1×4 so the end is 45 degrees, and then reset your saw to cut the piece to final length. Product Details. If you only want to provide houses for nesting, putting them up in late winter or very early spring will ensure they are available for even the earliest nesting species. Conservation Sparrow Resistant Western Bluebird House. Complete you what up have success to bluebird houses! Includes PDF plans, DIY video tutorials & the HIGHEST pre-made nest boxes. . As if that is not enough, male sparrows will mate with several females. Bluebirders often place tree swallow birdhouses within groups of bluebird houses because they protect their territory from sparrows, grackles and other intruders, yet are good neighbors to bluebirds. ID Guides; BWHQ Recommends; Quizzes; Thrush Houses: Of Definitive Guide (7 CLEAR Plans!) So you want a bluebird house in your backyard?. Made from Eastern white pine, which weathers beautifully to blend in with your backyard landscape. $84. Kestrel & Screech Owl House Regular price $79. At least, this keeps the sparrow population from increasing. 00. Wrens will use holes that are smaller than 1 1/8" in diameter. 576. For more information on this bird house please see Amazon link below: you need to have success with bluebird houses! Includes PDF plans, DIY video tutorials & the BEST pre-made hide boxes. Wrens will use holes that. Sparrows like to nest in trees and shrubs, so if you make it. for mountain bluebirds), then use a rasp to even out the edges. Birch-like log base. All American Blue Bird House, Light Blue. Layout and the drill the 1-1/2" entrance hole in the front (A). Unfortunately for nesting birds here in mid-TN there are a number of predators and pests that can deter, disrupt, or destroy an attempt to nest. Wrens only need a 1-1/4" diameter entrance. Here are four tips to deter sparrows: 1. Mounting: pole or post mount. I don’t believe that one can makeThis tree and violet-green swallow birdhouse is constructed with cedar, pine, or almost any soft wood. Close this searching box. This spooker is readily mounted on any style box. 5”x4. Sparrow-Resistant Eastern Bluebird House Regular price $59. Face boxes toward open areas in any direction. These Audubon bluebird birdhouses are simple, well-built, and untreated. To keep starlings out of a bird house, the hole must be 1. Little cuts on the outside and inside of the feeder are there to help the birds land easily on the outside and climb up on the inside. 75"H each. Cedar Roof measurements: 9" x 7-¼" x 1". This birdhouse for bluebirds help them defend their nest better. But Linda Violett of California has found that somehow Western bluebirds seem. Features maximum ventilation, predator guards and fledgling kerfs. Wrens only need a 1-1/4" diameter entrance. The perfect bird house for bird enthusiasts and kids! Nature's Way Cedar Bluebird Viewing House is made with naturally nuisance and rot resistant premium Cedar and stainless steel rust-free hardware for a durable house that will last multiple seasons. Troyer's Quality Purple Martin Gourds, Gourd Racks, Bluebird Houses and. The plans can be used to attract either Westerly or Eastern Bluebirds. There is a wooden base in the bottom of the house, there is one hole that can be used as drainage for any rain that may blow in. Bluebirds are fussy about their nest sites, and the size of the entrance hole is very important for attracting a nesting pair. Home; Latest Stations; ID Guides; BWHQ Recommends;. #4. How to Sparrow-Proof a Bluebird House. Sparrow-resistant Bluebird House: Made from Western Red Cedar for light weight and durability. House sparrow questions, more. 75"W x ~10"H Mounting: pole or post mount Construction: pineIt bothered me to find two adult Blue Bird males pecked to death by Sparrows inside 2 of my old bird houses within one week so I read up on these 'Sparrow Resistant Bluebird Houses' and decided to purchase 3. ". Find more free bird houses plans or discover more birdhouses and bird feeders. is a non-profit education, conservation, and research organization that promotes the recovery of bluebirds and other native cavity-nesting bird species in North America. These all use exclusively right angle. Cut the front of the box, 5" wide and 10 3/4" long, with an entrance hole ( a 1 1/2" hole for eastern bluebirds or western bluebirds, and 1 9/16" hole where ranges for the two overlap with. Since monitoring nest boxes once a week can actually improve nesting success for bluebirds, you are encouraged to open your bluebird houses! Additionally, opening boxes in the afternoon bothers bluebirds less than in the morning. The Duncraft box has a floor 5 1/2″ x 5 1/2″ (based on the dimensions shown in their ad), for a huge floor space of 30. TB-1B is 1x6 and 1x10 lumber. Facebook-f Pinterest-p Youtube. Made from Eastern white pine. Mountain and Western Bluebird boxes should be 200–300 yards apart. Depth of the compartment is 6-¾" width is 4". Free bluebird house plans with video instruction. Ravenox Sparrow Resistant PVC Bluebird House. 2-3/4 x 1-3/8 inch oval entry hole. People who successfully raise bluebirds (and other native secondary cavity nesters) in House Sparrow territory generally trap and euthanize House Sparrows that invade nestboxes, but this may be too late to save young or adult bluebirds from House Sparrow attack. Ideal for:: Bluebird, Eastern Bluebird, Western Bluebird, Mountain Bluebird. He will also drive off any other bird that might express an interest in. Facebook-f Pinterest-p Youtube. Coveside Conservation Sparrow Resistant bluebird house, Model # 10044. Western and Mountain Bluebird House Plans. Avoid using bluebird houses with larger entrance holes or slot entrances. Make sure the entrance hole is no larger than 1 1/2″ in diameter to prevent starlings. CHECK CURRENT PRICE. containing millet and cracked corn. Eastern bluebird houses can also have a 1 3/8 x 2 1/4 inch vertical oval hole or a 1 1/8 inch horizontal sparrow-resistant slot entrance at the top front of the box You can then follow our general information and tips on making bird houses regarding placement, wood type and thickness, ventilation, predator prevention and more. If House Wrens are likely to be a problem, be sure the box is mounted at least 50–200 feet away from a wooded orThis repeating elevator sparrow trap was about $70 + $10 shipping. Some studies have shown that bluebirds prefer a slot entrance to the standard circular hole entrance and sparrows prefer the opposite. Place away from dense cover (shrubs, thickets) and woods. European Starlings, on the other hand, like premium black-oil sunflower seeds. Features oval entrance, proven to keep out House Sparrows. Opening: 4"L x 1. A well-made bluebird house will usually have a side panel or a front panel that swings open on its hinges. AN simple go build, yet proven bluebird house such is made mostly from one cedar house. Below are have included free bluebird house plans, a simple one-board box that's relatively easy to built. 5"L x 5. Below we have included free bluebird house plans, a simple one-board box that's relatively easy into building. Bluebird Nestbox Front opening, bottom pivot Designed by Dick Peterson Drawn by: Fred Stille, Sr. Dimensions: 8. 5-inch wide hole, placed 6 inches above the base of the board (use a compass and pencil to draw the hole first). Skip to content. Skip until content. Eastern bluebird dwellings can see have a 1 3/8 x 2 1/4 inch vertical oval hole or a 1 1/8 inch horizontal sparrow-resistant slot entrance at that top face to the box How in Build. Use One Board To Build A Bluebird House. Construction: pine. 00. Keep boxes away from sheds, outbuildings, barns, and other structures where house sparrows may be nesting or otherwise attracted to. Assemble as shown (you can also use nails instead of screws). Eastern dark houses can also can a 1 3/8 x 2 1/4 inch vertical oval hole otherwise a 1 1/8 in horizontal sparrow-resistant slot entrance at the top fronts of the box. 0, Sept 12, 2011Page 1 of 1 Front Ceiling Side Make 2 1 Left 1 Right 1-3/16" 6 3/4" 7 1/4" 3 1/8" 3 1/2" 11" 9 1/4" Roof Saw kerfs on roof underside 1/2" in from edge x 1/8" deep 14" Side View Front View Side Side Back Front Ceiling Floor Pivot Screws (each side. There is also a great deal of satisfaction from seeing a family of young birds fledge from a box you built! We have included 3 very good and successful designs below that are all easy to build, except where noted. Therefore, just because a box is called a "bluebird" house BirdInformer BESTSELLER # 2. Step 1: The Plan. Bluebird House Plans. Mounting: pole or post mount. House sparrow problems, more. Made in the USA. • For Eastern Bluebirds, you can use a 1½ inch round hole, a 1⅜ x 2¼ inch vertical oval hole, or 1⅛ inch horizontal slot entrance. 25 square inches. Discourage sparrows from overtaking your bluebird trail thanks to this Sparrow-Resistant Eastern Bluebird House. In any mounting method, bird houses should be mounted approximately 5 feet off the ground. Home; Latest Item; YOUR Guides; BWHQ Recommends;. These DIY and FREE aviary dates produce fun projects. FREE shipping and the BEST customer service!How Toward Building Bluebird House Plans Video. One-board plans, Eastern Bluebird, Western Bluebird and Mountain Bluebird plans. Latch screw (or nail) Note:ifusng nail, drill hole down at angle as shown 1/8" dia. Cedar Roof measurements: 9" x 7-¼" x 1". House sparrows use straw, trash, and feathers to build a nest that curves up the back. If sparrow nests are regularly removed, no young will fledge from the box. • Western and Mountain Bluebirds prefer a 1 9/16 inch round opening or 1 3/16 inch slot entrance. For Eastern Bluebirds, use the following size holes: 1½ inch round hole, a 1⅜ x 2¼ inch vertical oval hole, or 1⅛ inch horizontal slot entrance. Bluebirds prefer to nest in open areas with low or sparse ground cover. Materials: This house has a western red cedar roof. The Carl Little Bluebird Box • Venting on both sides and across front • Sloped roof to shed rain • Large overhanging roof to shade box • Full swing down opening side for ease of monitoring and clean out • Screw fastener on side panel for secure closure • Seven interior grooves for fledgling exit ladderSparrow-Resistant Bluebird House Dimensions: 8. Note: This package contains 2 of the Sparrow-Resistant Cedar Eastern Bluebird Houses by Prime Retreat. Facebook-f Pinterest-p Youtube. Made in the USA. This birdhouse (nest box) is made using a small piece of wood and PVC pipe. Layout and the drill the 1-1/2" entrance hole in the front (A). One-board floor, Eastern Bluebird, Western Bluebird additionally Mountain Bluebird plans. 56-inch entrance hole that is just right for small birds to get in and too small for unwanted birds. Everything you need go have success is bluebird houses! Includes PDF plans, DIY movie tutorials & the BEST pre-made nest boxes. Home;. Drill birdhouse entrance hole. Insert the nail to hold the side door closed. You know adenine birdhouse is well-designed. 75"W x 10"H; Opening: 4"L x 1. If you see evidence of house sparrows, discard their materials. Attract bluebirds to nest in your backyard. 0. Sparrows are known to cause several problems in bluebird houses. Facebook-f Pinterest-p Youtube. Touch device users, explore by. Facebook-f Pinterest-p Youtube. In this video, I build a bluebird house with slot entry. The plastic Bluebird House weighs but a pound, comes with a metal hanger that makes it very easy to install, features a robust rain guard, an interior ladder for chicks and adults, and is the driest, snuggest bluebird house on the market. In this article, you’ll learn how to build or buy the right Sparrow bird house. Close this search box. Made from Eastern white pine. Bird House Plans. Tip: we use a 16 x 16 plexiglass…. Create a Green Roof Birdhouse. 1-1/2 inch slotted entry hole. This box has a shallow 4 1/2 inch drop from the bottom of the entrance hole to the floor, and a small, round nesting cavity with a 4 1/4 inch diameter. Monitor nest boxes every day. Once secure, attach the front piece to the side and bottom of the Bluebird house. Cracking the Cord of Wood Code: Understanding the Basics and Factors Affecting the Amount of Wood in a Cord. Use wren guards on active bluebird houses. House Sparrow proof. Opening: 4"L x 1. Everything you need to have success with bluebird houses! Incl PDF plans, DIY video tutorials & the SUPERIOR pre-made nest boxes. Overall box size: 8" high x 4-½" wide. 18) Birdhouse Designs. 5"L x 7. A. The house sparrow, Passer domesticus, is one of the most familiar, widespread birds in the world. In the battle for nest boxes, understanding the habits and preferences of these two avian neighbors is essential. 125"L x 5. House sparrow problems, more. Mounting a bird house on a building or barn wth most assuredly be taken over by a house sparrow, an aggressive exotic species that competes with native cavity-nesters. For oval entrance holes, all species of bluebirds can use an entry that is 2 1/4 inches tall by 1 3/8 inches wide. Bluebirds, cardinals, martins, etc. Attract bluebirds and other feathered friends with our larger Backyard Bluebird House. Wrap some wire loosely around the opening of the box that allows the bluebirds entrance but frightens or confuses the house sparrows. One-board plans, Ne Deadly, Western Bluebird and Mounts Pink plans. Main; Final Posts; ID Guides; BWHQ Recommends; Quizzes; Menu. Mount against any flat surface. Sparrow-Resistant Eastern Bluebird House Regular price $59. bluebird houses can also have a 1 3/8 whatchamacallit 2 1/4 inch vertical oblong hole or a 1 1/8 inch horizontal sparrow-resistant slot entrance at the top front on and box . Eastern thrush houses bucket also have a 1 3/8 x 2 1/4 inch vertical oval hole button a 1 1/8 inch vertical sparrow-resistant slot entrance at the top front of the box . suitable for you, give some share,Or you. 50. The Sparrow Resistant Slot Bluebird House features a Kentucky slot style entrance that discourages English Sparrows.