sparrow proof bluebird house. 75"H. sparrow proof bluebird house

 
75"Hsparrow proof bluebird house Bring bluebird-specific housing to your fence line or field using this Sparrow-Resistant Bluebird Houses with "T" Post Adapters package

This has been achieved by bluebird house enthusiasts in the past through adding skylights to wooden boxes. House Opening: 1. Mount the sparrow spooker to the back of the bluebird house so that there is a distance of about 8" between the roof line and the top of the device. This item: Nature's Way Bird Products CWH3 Cedar Bluebird Box House. 1-1/2" diameter slot entrance perfect for Eastern Bluebirds. This natural cedar house has a wealth of features, for the comfort of your bluebirds. TB-1 is from 1x12 cedar/pine, table saw required. A deep blue, lapped cedar roof lends bold color to the. Poly Roof Protects the Wood Base Stainless Steel Screws Looks Like a Birch Log Bluebirds and Tree Swallows Love it Mounts on a 1/2" Conduit Pipe Amish Made in the USA Roof Snaps On and Off for Cleaning Colors: Birch Tree Bottom with a Dark Brown Roof So here are five methods to discourage house wrens from using your bluebird houses: Mount bluebird houses at least 50 feet away from heavily wooded areas. FREE shipping and the BEST customer service!Eastern bluebird houses can also have a 1 3/8 x 2 1/4 inch vertical oval cavity or a 1 1/8 inch horizontal sparrow-resistant slot entrance at the top front regarding which box This design features a narrows 1½-inch insert that turns across the entire front to the box. Contents [ hide] Best Bluebird Feeder Reviews. A two-hole box is not technically a HOSP-resistant box. With sheltered boxes like this, a flock is more likely to move in this time of year. View Details. Naturally rot resistant and long lasting. Eastern, Western & Mountain Bluebirds. Classic Bluebird Bird House, Cobalt Blue. Protect the bluebirds nesting in your backyard. It. 25"H Slot Opening for Western Bluebirds; Weight: 4 lbs. According to research done at the University of Kentucky, bluebirds prefer the slotted entrance to the circular hole entrances frequently seen. ) Also avoid feeding cheap seed mixes with millet and. Cost is $6/trap plus $1 S&H. Opening: 4"L x 1. Kaytee Wild Bird Food Mealworms For Bluebirds, Wrens, Robins, Chickadees, Woodpeckers, Cardinals & Chickens, 17. Sparrows are larger than bluebirds, so they won’t be able to fit through the entrance hole. 1. 48; Antique Wash Wren House with Copper Colored Roof $21. Starlings and House Sparrows (two predator bird species) have a tough time entering a bird house with a hole size of 1-1/8" (which is ideal. Durable tan and green recycled plastic. Nesting bluebirds face a lot of threats from various predators including snakes, raccoons, outdoor cats, chipmunks and more. Nestbox skylight. 3″ hole saw. Bird House Hole Size To Keep Starlings Out. It mounts on 1/2” conduit pole that is not included in the purchase of the house. Sparrows look for dark cavities to nest in and this. Visit The Spruce's homepage. 76 (2 new offers) Bird Blinder Plastic Bird Spikes - Polycarbonate Deterrent for Pigeons and Other Small Birds - Bird Nest Prevention, Bird Repellent Outdoor Devices (16 Foot Coverage)Knowing when to put out birdhouses is essential for birders to attract nesting birds to their yard or garden. Sparrows like to nest in trees and shrubs, so if you make it. Add to Favorites Ark Workshop Slot Entrance Cedar BLUEBIRD HOUSE. 99 $ 69. 95. Building an anti-sparrow bluebird house requires a precise and methodical approach to ensure the safety and comfort of these charming avian visitors. The ideal place for an Eastern bluebird house is in a wide-open, sunny backyard. The most common way is to make a fishing line grid over the entrance. Even though the design of these bluebird houses. 25”H. Explore. It is made from recycled materials and is built to withstand hard weather. Cedar Roof measurements: 9" x 7-¼" x 1". 25"H Dimensions: 8. 00. For side-opening nest. 5" and the interior dimensions are no smaller than 5"W x 5"L x 8"H. 75"H. 5 inches deep by 4. Erva Bluebird Feeder. Bluebirds will probably never visit a bird feeding station that ONLY serves typical feeder foods like sunflower, safflower, Nyjer (thistle), peanuts, etc. Thought we were doing it all correctly with sparrow proof box and sparrow spooker. Keep the threat of unwanted sparrows away from fantastic bluebirds with this Sparrow-Resistant Bluebird House with Open Top. Compare prices & save money on Outdoor Decor. Coveside Bird Habitats Sparrow Resistant Bluebird House . Now: $65. 25" opening provides a slot entrance for these bluebirds. In any mounting method, bird houses should be mounted approximately 5 feet off the ground. Price: $159. While a sparrow-proof bluebird box design has yet to be developed, there have been attempts at designing boxes that are less attractive to them. Measure up 11" from the bottom edge, centering the entrance hole across the width. WBU Sparrow Resistant Bluebird Nest Box: Our WBU Sparrow Resistant Bluebird Nest Box is designed to thwart pesky sparrows from taking over the box. Keeping away the sparrows means more food and lessThis item: Kettle Moraine Recycled Bluebird Mealworm Feeder Hang or Mount (Blue, Cedar) $49. In this video, I'll show you five tips for how to keep House Sparrows out of your bluebird houses. FREE shipping Add to Favorites Previous page. 97. Here is what helped me: Offer massive amounts of cracked corn positioned at least 15 feet away (4. 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. One-board plans, Eastern Bluebird, Western Bluebird and Mountain Bluebird plots. Build the eastern bluebird birdhouse with red cedar, pine, or almost any soft wood. Instead, we will consider the following two House Sparrow versus Tree Swallow. Conservation Sparrow Resistant Western Bluebird House. Carolina Chickadee. Aug 08, 2013 #1. Check out this video on Dean Rust's site (Dean is a county coordinator for the PA Bluebird Society). Therefore, they need bird boxes with a substantial interior volume that’ll accommodate their dome-shaped nests. Many Bluebirders believe that the slotted entrance makes this house sparrow resistant. To find the right bluebird feeder, consider the following products rated highly by expert birders. 20) Find great deals on the latest styles of Sparrow resistant bluebird house. Pull down the front panel for easy cleanout. 89. Cut the. The Sparrow-Resistant Bird House is crafted specifically for bluebirds, making these ideal for bluebird trails. $120. This non-native, predatory species is a nesting Bluebird’s worst nightmare. The North American Bluebird Society is providing this information on House Sparrow control to let you know that there are options available when dealing with. WBU Sparrow Resistant Bluebird Nest Box: Our WBU Sparrow Resistant Bluebird Nest Box is designed to thwart pesky sparrows from taking over the box. the cubic inches of the interior. Audubon's collection of bird feeders, houses, bird baths, and accessories have been reviewed by our science team and field-tested for quality assurance. 25"L x 1. Avoid placing boxes where house sparrows are abundant — near livestock farms, or within cities. Slip the suet with shell and all into the cage so that the side where the suet is exposed is opposite the side where you tied your string. Sparrow-Resistant Eastern Bluebird House Regular price $59. 1. They are NOT sparrow-proof, but they help. Brand: Here are four tips to deter sparrows: 1. Vinyl-coated wire surrounding the feeder prevents large birds like Northern Cardinals, Blue Jays, or European Starlings from coming in. Did you know how much pets really love UPS drivers? Turns out it's the highlight of their day!May 9, 2020 - #PurpleMartin season might be coming to an end, but Ravenox is also a great place for bluebird lovers! Our Western Red Cedar Bluebird House is a perfect addition to your yard. December 19, 2022. Get your content registered in a globally recognized 3rd party system. Add to cart. In three nest attempts, they have fledged 13 and now we have many bluebirds around. Sparrows look for dark cavities to nest in and this house. Bluebirds can. Rugged brown and green recycled plastic with ventilation and drainage. $66. Kestrel & Screech Owl House Regular price $79. Add to cart Sold. To begin - select category. Description. net. $155. 99. 4. This cypress house features a slanted front to further discourage sparrows. FREE shipping. Good style for a nestcam. Sparrow Resistant bluebird house! This bird house made by our Amish artisans will look wonderful in your garden and hopefully attract some of those elusive bluebirds! - Easy to clean out - Front opens (held closed with 2 pins) - Easy to install - Durable - Box size is ~ 12 inches high x 5. Build a Bluebird Trail! Save $$ when you purchase multiple nest boxes. 42 Brown and Brown (Mountain) /. Utilize the attached, back hanger to showcase this handy home against a post or wall, or pole mount it with a mounting bracket (not included). These birds prefer their nest entryways to be small enough to deter predatory birds or other animals that could be out to kill their hatchlings, and large enough to allow for seamless entry and exit into the nest. Gilbertson’s box traps from Steve Gilbertson, HC 5 Box 31, Atkin, MN 56431, (218) 927-1953. Some of these designs have not been field-tested sufficiently, while others seem to work in one area and not in another. It is made from recycled materials and is built to withstand hard weather. PDF Booklet) EABL Nesting. In Stock Ships from OH . Roof is made from Poly-Tuff™ for greater exterior quality. 7 out of 5 stars 88. Out of stock. 5"W x 15"H. House sparrows chase bluebirds. First, try not to place your bird box or bat house on a tree. Poly Sparrow Resistant Bluebird Post Mount Bird House, blue birdhouse, bluebird house, Custom Birdhouse, Custom Colors, outdoor decor. Dick Peterson's trail research proved that when given a choice, Bluebirds preferred his 2 1/4" x 1 3/8" oval entry over the standard round. House sparrows chase bluebirds away, crush their eggs, kill nestlings and also kill adult bluebirds. Sparrow Resistant Blue Bird Box | Durable Poly Lumber | Amish Made | E102 (1. 50. Loosen the eye hook for easy. 95. Made in the USA. Use Bird Traps. 1. In this video, I'll show you five tips for how to keep House Sparrows out of your bluebird houses. 00. House sparrows chase bluebirds away, crush their eggs, kill. $19. com. Add to Favorites More like this Wakefield Premium Sparrow Resistant Bluebird House Ad vertisement by MonroeSystems MonroeSystems. Also the nest tray takes cubic inches away from the cavity which also discourages sparrows. Troyer's Sparrow-resistant Bluebird House (#SRBH) Why the SRBH is Sparrow-Resistant?: The slotted entrance lets in sunlight, sparrows want dark cavities, not bright ones. T his is a great, simple nesting box design developed by Tom Comfort of Antrim County and a committee of national bluebird house experts. The bluebird pair have now constructed a new nest, and the mounting brackets for the spooker are installed and. In the past, we've had raccoons & crows raid our bird houses but they eat the eggs or babies, they don't drop them. Discount applied at checkout. House sparrow nests are. Author: lauraerickson. Features slotted entrance to deter House Sparrows. Package Includes: * 4 Conservation Sparrow Resistant Bluebird Houses. 2k) $ 49. net. Layout and the drill the 1-1/2" entrance hole in the front (A). Sparrow-resistant Bluebird House ITEM #: COV-10044 $59. Constructed out of Eastern White Pine. com FREE DELIVERY possible on eligible purchasesEntrance Hole: For Eastern bluebirds, the entrance hole should have a diameter of about 1. containing millet and cracked corn. Nail the side to the floor. Mounting: post or pole mount. Cedar Roof measurements: 9" x 7-¼" x 1". Because they adapt quickly to most deterrents, finding a single. 00. Wakefield Premium Sparrow Resistant Bluebird House 5 out of 5 stars (38) $ 55. How to Sparrow-Proof a Bluebird House. Attach to a pole or wall and host a bluebird family. The House Sparrow’s Latin name, Passer domesticus, aptly describes its preferred nesting habits – around houses. How to Make a DIY Wasp Trap. PDF) Mealworms (2 pg. 7) Gilbertson Bluebird Nest Box. If you are trying to attract bluebirds in an area where you suspect House[va-bird] Sparrow-proof bluebird house. Steve: Bluebirds, especially Eastern Bluebirds, like a large entry. 25"H; Weight: 4 lbs. Recycled Bluebird House $54. It mounts on 1/2” conduit pole that is not included in the purchase of the house. 78 $ 54. The simple metal disc wraps around the pole, preventing squirrels from climbing up to the birdhouse. Smart Living Transform Your Home with These Cutting-Edge GadgetsSparrow-Resistant Eastern Bluebird House by Prime Retreat. Plant Filter. It has a 1-9/16-in entrance hole which is ideal for Western Bluebirds. Here is what helped me: Offer massive amounts of cracked corn positioned at least 15 feet away (4. Follow these guidelines: Entrance Hole Size: Bluebirds prefer a 1. A horizontal slotted entrance at the top of this bluebird house allows light to enter, deterring sparrows which prefer darker areas. From this “halo” you then optionally hang four thin wires weighted at the bottom to hold them straight. The 5 inch by 5 inch floor meets recommendations for Eastern, Western and Mountain Bluebirds. The 10 DIY Bluebird House Plans. 47 - $112. How to Sparrow-Proof a Bluebird House. More specifically, 5′ from the ground to the bottom of the birdhouse. 1 Helpful. FREE shipping Add to Favorites DutchCrafters Poly Bluebird Bird Feeder, Mealworm Bird Feeder, Hanging. Modern BirdhouseAny swaying may cause the mechanism to trip closing the trap door and preventing House Sparrows from entering. If it is unable to fly it will be eaten by predators very soon. 95 | / This is an excellent quality, and recycled bluebird house from Green Meadow. boxes as well as other nestboxes that have a small interior volume. 0. 5" from hole to recessed floor. There is no perfect box design and none that are House Sparrow proof, but there are Bluebird boxes standards to follow when building a box. 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. $54. Made in the USA. Brood size was 4 birds per box. Align the roof flush with the back and attach with 1-5/8-inch deck screws (drill pilot holes first). Measure up 11" from the bottom edge, centering the entrance hole across the width. It is made from recycled materials and is built to. While a sparrow-proof bluebird box design has yet to be developed, there have been attempts at designing boxes that are less attractive to them. 5" hole. Mounting: pole or post mount. jill keepes Apr 30, 2023. Opening: 4"L x 1. The Most Sparrow-Resistant Bluebird House on the Market. View full detailsBuy DutchCrafters Sparrow Resistant Bluebird Poly House - Post or Wall Mount (Tudor Brown & Weathered Wood): Birdhouses - Amazon. 78. 1-1/2 inch slotted entry hole. their young. Common problems include weather, attacks by House Sparrows, House Wrens, and climbing predators such as raccoons, cats, and snakes. 5"L x 5. Qty 1 Stokes Bluebird Book: The Complete Guide to Attracting Bluebirds. The most common way is to make a fishing line grid over the entrance. This Erva Bluebird Feeder comes with a stunning blue powder-coated top and bottom and has multiple features for feeding bluebirds specifically. Add to Favorites Universal Sparrow Spooker. 75"H. from basic nest box to bluebird mansion! Vinyl Bluebird House $109. View full details Original price $64. Keep the birdhouse 100ft from the feeder. The house sparrow, Passer domesticus, is one of the most familiar, widespread birds in the world. Dimensions: 8. PDF) Nestbox Recommendations (4 pg. 3. Recent research using NestWatch data suggests that, on average, nests in boxes with predator guards had success rates 6. 625"D x 10"H. 99. $45. However, the following suggestions should be adhered to for best results: • A sparrow spooker should be installed only after the host bird nest has its first egg. 5" or smaller. A hole in the base allows water to drain, while additional gaps at the top help ventilate the unit. Perch areas near. 911. Nail the side to the floor. This large birdhouse mounts securely on a pole. 75"D x 14"H Mounting: wall or post mount Construction: recycled plastic lumberThe Sparrow Spooker Keeps the House Sparrow Out of the Bluebird House. These invasive birds can empty my big hopper feeder every day or two (and that feeder holds up to 12 pounds of bird seed!). This bluebird house from Cedar Alpa is again made with premium red cedar wood, which is known for its weather-resistance features and durability. Add to Favorites Ark Workshop Slot Entrance Cedar BLUEBIRD HOUSE box: It works! see pics. Made from cedar, this house features ventilation and drainage holes, a front door that opens for easy access for cleaning, hooks for hanging and a rough interior so fledglings can easily leave the. Psst—hummingbirds are all about speed — you. Easy open for monitoring and cleaning. Opening: 3. This spooker is readily mounted on any style box. LEFLEUR BIRDBATH or PLANTER (4 Color Options): Solid Stone Durable Container. If PVC boxes are paired with a wooden box, House Sparrows tend to choose the wooden box. The main solutions are to A) put your nest box out in the open away from woods and trees, and B) put a climbing guard or baffle on the pole to prevent mammals from climbing them. Eliminating favored food sources is one of the easiest ways to stop house sparrows from visiting. Discount applied at. Chickadees and Titmice – All species of chickadees and titmice will use birdhouses. House Sparrows will readily use them in the absence of bluebird competition. NABS (North American Bluebird Society) Approved. European Starlings, on the other hand, like premium black-oil sunflower seeds. Tree swallows make good neighbors that will help defend bluebirds from sparrows, but these bird houses also invite sparrows, so monitor the swallow houses as well as the. 25"H. 5″ D x 8. 0Discover (and save!) your own Pins on Pinterest. House sparrows chase bluebirds away, crush their eggs, kill nestlings and also kill adult bluebirds. Birders who do not want to see house sparrows at their feeders should remove cracked corn, wheat, oats, millet, and bread scraps from their buffet. 375"L x 1. in. #1. These birds nest in dense natural habitat, such as thickets or stands of small trees. SRP: $65. Made from cedar, this house features ventilation and drainage holes, a front door that opens for easy access for cleaning, hooks for hanging and a rough interior so fledglings can easily leave the. “A sparrow spooker is a device that has proven to be an extremely effective house sparrow deterrent when attached to a Bluebird nestbox after egg-laying has commenced. 2k) $ 49. 1-1/2 inch slotted entry hole. Designed by North American Bluebird Society The flagship box of the North American Bluebird Society. 95Ravenox Sparrow Resistant PVC Bluebird House. 39; Annapolis Lighthouse Bird House $105. These include Tree & Violet-green Swallows, bluebirds, chickadees, wrens, nuthatches, and possibly titmice. you will need to monitor the box and use the below tips to not attract starlings to your backyard. We focus mostly on eastern bluebird house plans, but you can use the same plans for western bluebirds, and to use them for mountain bluebirds, make the entrance hole slightly larger, as we recommended in the last section. Sparrow Resistant bluebird house! This bird house made by our Amish artisans will look wonderful in your garden and hopefully attract some of those elusive bluebirds! - Easy to clean out - Front opens (held closed with 2 pins) - Easy to install - Durable - Box size is ~ 12 inches high x 5. TB-1A is 1x6, 1x8 and 1x10 lumber with largest floor area (32 square inches), for species that need more space. 75"H each. Learn more Free Shipping ( Ships within 2-3 Business Days: Learn more ) Designed to. 6. 5m) from your other bird feeders. It’s the ideal size for bluebirds, and it includes the proper drainage and ventilation to keep babies dry. If you see evidence of house sparrows, discard their materials. Some great inexpensive books on building bird houses: Approximately 1 dozen cavity-nesting birds will use boxes with a 1 1/2" entrance hole. Go To Homepage. And while all types of guards were correlated with improved nesting success, birds nesting in boxes with cone-type baffles, stovepipe baffles, or entrance hole extenders (also. Mount it on a metal pole—cats, raccoons, weasels and rats can climb trees and. Amish made in the USA. Ravenox Sparrow Resistant PVC Bluebird House. 1. How to Build a Birdhouse. House Sparrows will readily use them in the absence of bluebird competition. Attract bluebirds, then watch your bluebirds fledge. Set up your nest box in an open area, away from houses and barns. Try to build a roost box using plans available on the Internet. $10. Watch. Sealed for Outdoor Use & Holds Water. 10. Poly Sparrow Resistant Bluebird Post Mount Bird House, blue birdhouse, bluebird house, Custom Birdhouse, Custom Colors, outdoor decor (51) $ 49. Houses should be mounted securely facing away from prevailing winds in the area to prevent rain from entering the box. The house sparrow is considered an invasive bird in many areas, causing damage and problems for native species. Since then, these greatly adaptable birds possess expanded their range across the entire continent, and they are now found in almost every side off the world. The smart black. This bluebird house is ornithologically designed to attract bluebirds. Deluxe Recycled Bluebird House- NABS Approved $97. 5k)Recycled Bluebird house with 1 1/2" entrance hole and be pole or post mounted, green. Designed to be Resistant to Sparrows and Attractive to Bluebirds! Features an Opening Front Door for Easy Cleaning. Manufactured from mahogany, the two wooden spring-set dowels make for simple installation. Erva Bluebird Feeder. Because they adapt quickly to most deterrents, finding a single means of sparrow-proofing is difficult. Sparrow Resistant bluebird house! This bird house made by our Amish artisans will look wonderful in your garden and hopefully attract some of those elusive. This reminds me of an old box designed by Vince Bauldry - the Bauldry open top - but this one won't let rain in. Basically there is no "Best" Bluebird house. Drill at a slight downward angle, going through the front of the house and into the side. Premium Two-Sided Observation Bluebird House Premium Two-Sided Observation Bluebird House Regular price $62. (60) $49. Bluebird House Sparrow Resistant Bird House USA, Gray /Blue by USA Handmade (1) $149. 9) The Carl Little. 5"W x 8. be wound around and fastened tightly to the top right screw. They are usually extremely effective in deterring HOSP from entering a bluebird nestbox to attack eggs, nestlings or incubating adults. Erva Bluebird Feeder. com : Coveside Bird Habitats Sparrow Resistant Bluebird House : Bird Houses : Patio, Lawn & Garden Patio, Lawn & Garden › Outdoor Décor › Backyard Birding &. It is better to have no nestbox than to have one that fledges House Sparrows. How customer reviews and ratings work See All Buying Options. Sparrow Proof Bluebird House. Note: Additional freight charges may apply when purchasing in multiple quantities. Prior to installing the new nesting boxes, all but one box were taken over by house sparrows. To avoid possible retaliation, do not remove the sparrow nest if bluebirds are nesting in the paired nest box until bluebirds. If the houses aren't up, however,. Because of all the cause that house sparrows occasion azure, it’s normal to wonder about sparrow-resistant bluebird houses. 875"L x 1. #4. The style house makes it easy for bluebirds to nest without competing. We were aware that bluebirds suffer from having their homes absconded by house sparrows and that certain parasites, blackflies in particular,. Sunflower seed should also be either limited or restricted to. Opening: 4"L x 1. Learn more at: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. If this commitment is taken seriously, both you and the bluebirds will be rewarded. 1-1/2 inch slotted entry hole. 3. 125"L x 5. 00 (5% off) FREE shipping. House Sparrows tend to like them for whatever reason – so ditch the perch to get rid of House Sparrows. Attract bluebirds to nest in your backyard. This cypress house features a slanted front to further discourage sparrows. Qty: more info: Premium Recycled Bluebird House by Prime Retreat. Approved by the North American Bluebird Society (NABS). #4. Poly Roof Protects the Wood Base Stainless Steel Screws Looks Like a Birch Log Bluebirds and Tree Swallows Love it Mounts on a 1/2" Conduit Pipe Amish Made in the USA Roof Snaps On and Off for Cleaning Colors: Birch Tree Bottom with a Dark Brown RoofTake down or modify any ornamental bird houses in your yard. Avoid Feeding. Mount against any flat surface. House sparrows chase bluebirds away, crush their eggs, kill nestlings and also kill adult bluebirds. 75"H. Below are our top picks for attracting a variety of birds to your outdoor space year-round; plus you can find our 200+ styles of bird feeders, birdhouses, bird baths and accessories in-stores. As for the monitoring, songbirds have a notoriously bad sense of smell, so it is perfectly acceptable to open the houses and check the nest and the fledglings every day for parasites or. #5. By Lindsay Collins. House Sparrow. Steve: Bluebirds, especially Eastern Bluebirds, like a large entry. Install perches inside the house, such as leaning twigs or thin dowels from corner to corner to allow a variety of birds to use the space effectively without smothering birds on the bottom. The most common price range for bluebird houses is between $24 and $40. 99 USD Regular price Sale price $59. I looked at these few plans, and improvised my own methods with I will refer to as ‘treatments’. Normal box size includes a 4×4 inch floor, a depth of (minimum) six inches, and an entrance size of one inch in diameter if round or 1 1/8 inch if using a slot shape, said Springer. Sparrow Resistant Blue Bird Box | Durable Poly Lumber | Amish Made | E102 5 out of 5 stars (1k) $ 49. 4. 4k) $ 82. 95 - Original price $49. 7 out of 5 stars 7. T his is a great, simple nesting box design developed by Tom Comfort of Antrim County and a committee of national bluebird house experts. 6 Ounce. Excellent Bluebird house! Constructed from Western Red Cedar. 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