The Audubon Birdhouse Book includes plans for building and locating nesting. 5-1/2 x 1-1/8 inch slotted entry hole. Sparrow-Resistant Bluebird House Dimensions: 8. 7 out of 5 stars 59 1 offer from $35. Deciding what bluebird house you should get, should not be difficult or complicated. The Gilbertson style nest box, in particular, seems to be effective at attracting bluebirds and deterring sparrows. If you catch a house sparrow in a trap, you can place a plastic bag over the trap and the bird will fly into it. Press two pushpins securely into the front of the nest box roof (about 1 3/4″ apart). 00. 0 out of 5 stars Female Sparrow -Resistance. House sparrows chase bluebirds away, crush their eggs, kill. Initially, some of these birds were imported from England, hoping to control certain caterpillars that harm shade trees in the U. This item: DutchCrafters Plastic Poly Bluebird Nest Box - Post or Wall Mount, All-Weather Birdhouse for Outdoors, Sparrow Resistant Bird House for Outside - Amish Made in USA (Light Gray & Blue) $78. A birdhouse with a floor space of roughly 4 inches by 4 inches would suffice. $69. The slot allows more light in which sparrows do not like. House sparrows don’t compete with bluebirds for food, though, since bluebirds are insectivores and house sparrows prefer grains. bluebirds from House Sparrow attack. 5"L x 5. This bluebird house is ornithologically designed to attract bluebirds. This cypress house features a slanted front to further discourage sparrows. Troyer’s Sparrow-resistant Bluebird House and Pole Bluebirds are territorial, they protect a radius of 150’ so, place your house(s) 300’ apart, in an open location, not too close to trees. If you are trying to attract bluebirds in an area where you suspect HouseSparrow Resistant Bluebird House Green Meadow. Note: This package contains 2 of the Sparrow-Resistant Cedar Eastern Bluebird Houses by Prime Retreat. House sparrows are a territorial and aggressive, non-native bird species in North America and they compete heavily with bluebirds for nest boxes. Generally, I post photo how-to's on. If it is unable to fly it will be eaten by predators very soon. How to Sparrow-Proof a Bluebird House. After installing the new boxes in the spring of 2014, we have had no sparrows taking up residence. Managing different feeding sources effectively limits the sparrow’s access to bird feeders. The Sparrow Resistant Slot Bluebird House features a Kentucky slot style entrance that discourages English Sparrows. Cedar Blue Bird Box House Air vent for Proper Air Ventilation Wall Floor Opening. House Sparrow Nest in Bluebird Nest Box. Wakefield Premium Sparrow Resistant Bluebird House 5 out of 5 stars (38) $ 55. There is a wooden base in the bottom of. Rated 0 out of 5 stars. This is the easiest way to keep sparrows out of your bluebird nests. Amish made in the USA. Erva Bluebird Feeder. Made in the USA. Opening: 4"L x 1. House Sparrows tend to like them for whatever reason – so ditch the perch to get rid of House Sparrows. House melodic bluebirds without pesky sparrows using these Sparrow-Resistant Cedar Eastern Bluebird Houses. Add to Favorites Wren or Sparrow very nice A-Frame birdhouse / feeder (35) -All our creations are Unique,. 5 inches (3. Open front panel for easy cleanout. Drill a 1 1/2″ diameter entrance hole located 7″ above the floor (to. Naturally rot resistant and long lasting. Birders who want to offer birdhouses only to a specific type of bird, such as bluebirds or purple martins, can learn when the best time to put up houses for that species may be. This is especially true for my enjoy me that are not incredibly handy and generally embarrassed at its lack of carpentry skillset. 4 3/4" x 4 3/4" floor. The entry hole is 1. #4. Features two wooden dowel perches on either side of the entrance to provide your bluebirds with a predator lookout. 5" dia. 00. 25"L x 1. Constructed up to 90 percent post consumer recycled plastic it features sturdy screwed together construction. Brand New. 3k) $ 4. 99 USD Regular price Sale price $59. Delivery in 2-3 Weeks. The interior is well ventilated to avoid overheating, provide drainage and a fledgling ladder to help the. Read. 95 Free Shipping ( Ships within 2-3 Business Days: Learn more ) Designed to attract bluebirds, and deter sparrows. Some have found that if PVC boxes are paired with a wooden box, House Sparrows tend to choose the wooden box. If not for the House Sparrows, we would be using the round hole. According to research at the University of Kentucky, bluebirds prefer a. According to research done at the University of Kentucky, bluebirds prefer the slotted entrance to the circular hole entrances frequently seen. Made from recycled plastic for a long life of use. 00. 5 inches wide: Roof. Coveside Conservation Sparrow Resistant bluebird house, Model # 10044. Early testing results show the bluebirds really prefer it over many other designs. 6. A two-hole box is not technically a HOSP-resistant box. To remove the roof squeeze the sides of the house and it easily comes off for nest checks. House Sparrows LOVE eating cracked corn. Female House sparrows are browner all over and lack the black bib. Make a 4″ by 4″ floor (inside dimensions) and 9″ floor to ceiling height (inside front). Amish made in the USA. Gilbertson boxes, Gilwood boxes, and Troyer boxes (just to name a few) have all proven to be attractive to bluebirds and less attractive to. Wrens only need a 1-1/4" diameter entrance. The 10 Best Squirrel-Proof Bird Feeders of 2023. 25"W x 8"D x 10. A hole in the base allows water to drain, while additional gaps at the top help ventilate the unit. 25"H Dimensions: 8. 875"L x 1. Features: Made from Western Red Cedar for light weight and durability. Out of stock. Encourage lovely bluebirds to roost in your yard by placing this Gray and Brown Recycled Plastic Sparrow Resistant Bluebird House in it. Attract Nesting Hummingbirds. Shop Wayfair for the best sparrow resistant bluebird house. NABS (North American Bluebird Society) Approved. Follow these five easy tactics: Set up your nest box in an open area,. Bluebirds are considered one of the loveliest birds in the world. It is in many ways a remarkable bird, believed to be one of the oldest known bird species and a marvel of adaptation. 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. The common house sparrow can be invasive and harmful to native birds. Screws or Nails: Opt for corrosion-resistant screws or galvanized nails to. 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. We were aware that bluebirds suffer from having their homes absconded by house sparrows and that certain parasites, blackflies in particular,. Opening: 5. TB-1A is 1x6, 1x8 and 1x10 lumber with largest floor area (32 square inches), for species that need more space. Poly Sparrow Resistant Bluebird Post Mount Bird House, blue birdhouse, bluebird house, Custom Birdhouse, Custom Colors, outdoor decor (45) $ 49. The purpose of this project was to utilize waste materials to benefit wildlife. 95. 1. It mounts on 1/2” conduit pole that is not included in the purchase of the house. $84. 21 How to Sparrow-Proof a Bluebird House; 22 A simple piece of wire can scare off house sparrows and keep bluebirds safe inside nesting boxes; 1 Laura Erickson’s For the Birds. ; drop: 5 1/2" Cross ventilation: 2 3/4 sq. Nature's Way Bird Products CWH3 Cedar Bluebird Box House Crafted from Insect and Rot Resistant Premium Cedar with a Water-Based Protective Stain Check. Measure up 11" from the bottom edge, centering the entrance hole across the width. by Union Rustic. Kettle Moraine Cedar Bluebird Mealworm Feeder. Attract bluebirds to nest in your backyard. (1. Best Nest Box: My all-time favorite nest box for bluebirds is the Nature’s Way model CWH4. Many Bluebirders believe that the slotted entrance makes this house sparrow resistant. com; Published Date:. This item: DutchCrafters Plastic Poly Bluebird Nest Box - Post or Wall Mount, All-Weather Birdhouse for Outdoors, Sparrow Resistant Bird House for Outside - Amish Made in USA (Turf Green & Cedar) $78. Monitor your bird houses regularly to remove House Sparrow nests. One strategy is to remove the sparrow's eggs and allow the female sparrow to continue to lay eggs in the box, but not allow them to hatch. 48; Antique Wash Wren House with Copper Colored Roof $21. Keep the threat of unwanted sparrows away from fantastic bluebirds with this Sparrow-Resistant Bluebird House with Open Top. in. TB-1B is 1x6 and 1x10 lumber. Use wood rough-cut on both sides so that birds can grip both interior and exterior surfaces. I bought it primarily to have a birdhouse that would be less attractive to the sparrows than my conventional wood bluebird house. Bluebirds need an area of about 300 feet open and defendable around Bluebird houses. 25"W x 6. Find many great new & used options and get the best deals for Sparrow-Resistant Bluebird House at the best online prices at eBay! Free shipping for many products!Best Bird House Reviews. 00: Read more. Features: • This Kentucky-style, slot entrance bluebird house is designed to thwart sparrows. Est. Basic. Male House Sparrow at Feeder. Understanding the potential harm sparrows can cause to bluebirds is essential when preventing sparrow infestation in bluebird houses. Add to Favorites Universal Sparrow Spooker. Bluebirds prefer a house that has an entry hole of 1 1/2 inches for eastern and western species and 1 9/16 inches wherever mountain bluebirds may be. Floor Dimensions: The floor of the bluebird house typically measures around 4 x 4 inches (10 x 10 centimeters). Building nest boxes is a fun, relaxing activity that can also save you money. Brood size was 4 birds per box last year. Monitor nest boxes every day. in. Features slotted entrance at the top to discourage House Sparrows. It is made from recycled materials and is built to. (74) $49. Dimensions: 8. Also the nest tray takes cubic inches away from the cavity which also. F&M Front opening box. This shelter, based on thorough research from the University of Kentucky, caters specifically to bluebirds and deters sparrows from nesting. *UNIVERSITY OF NEBRASKA. It is better to have no nestbox than to have one that fledges House Sparrows. 25"L x 1. In this article, you’ll learn how to build or buy the right Sparrow bird house. Read more Overview Specifications Reviews Q & A Overview House sparrows chase bluebirds away, crush their eggs, kill nestlings and also kill adult bluebirds. The floor should be between 4 1/2 to 5 1/2 inches square and the floor should be 5 to 8 inches below the entry hole. The design of this product works great for bluebirds, helping to deter sparrows from the area. Learn more Free. Some great inexpensive books on building bird houses: Approximately 1 dozen cavity-nesting birds will use boxes with a 1 1/2" entrance hole. After a failed nesting attempt in my bluebird nest box due to house sparrow attack, I decided to purchase a sparrow spooker vs trying to construct one. 5" diameter entrance hole size is readily accepted by bluebirds, and excludes house sparrows and starlings. habitats. The Green Meadows Bluebird Nesting Box is Sparrow Resistant and is sure to help enhance the bluebird population of your outdoor area - providing a beautiful, safe and secure place for bluebirds to enjoy! Green Meadow Polywood Houses are USA made with eco-friendly 100% post-consumer recycled plastic. Mount against any flat surface. is designed for use by a large variety of backyard. 95 Add to Cart. Opening: 1. Floor area: 22 sq. I looked at these few plans and improvised my own methods with I will refer to as treatments. European Starlings, on the other hand, like premium black-oil sunflower seeds. Sealed for Outdoor Use & Holds Water. By Lindsay Collins. 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. I don’t believe that one can makeIncludes 72 inch tall sectional pole with black powder coated finish. These boxes are made from Cedar, Pine, Catalpa and/or Cypress woods. 7-1/4 x 7 x 9-7/8 inches. 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). 14 DIY End Table Plans. Cut the 10" x 4" front door section and drill a 1-1/2" entry hole, centered 7" above the bottom of the door. The 5 inch by 5 inch floor meets recommendations for Eastern, Western and Mountain Bluebirds. org. General bluebird nest box dimensions should be: at least 9”x4. December 19, 2022. Use a Quality Bluebird Nest Box 2. Our standard birdhouses come in a variety of styles and shapes, and all are made of poly lumber, so they will last for years in your backyard. 00. No. Bluebirds prefer a slot entrance to the standard circular hole--sparrows prefer the opposite. 99 USD Regular price. 25"W x 8"D x 10. Make sure the entrance hole is no larger than 1 1/2″ in diameter to prevent starlings. 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. The sparrows took possession of it within 24 hours of placement in the yard. Out of stock. All birds. Nesting Box for Bluebirds. 1k) $62. This model includes a stay-clear, crack-resistant viewing window to allow for nest viewing. 42 Brown and Brown (Mountain) /. Made in the USA. A "bluebird" house placed next to a shrubby thicket likely be of interest to a Car- olina wren. This size allows bluebirds to enter comfortably while excluding most competing bird species. x 5 in. 10) Hanging Western Bluebird Nest Box. It is made from recycled materials and is built to withstand hard weather. Compare prices & save money on Outdoor Decor. 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). Screws or Nails: Opt for corrosion-resistant screws or galvanized nails to ensure the longevity of your bluebird house. Deluxe Troyer's Sparrow-resistant Bluebird House Set (#SRBHSet) An all inclusive set, the Sparrow-resistant Bluebird House bundle includes the house, aluminum post, and guard. 25"H Slot Opening for Western Bluebirds; Weight: 4 lbs. Sparrow-Resistant Entrance Hole: Acquire an entrance hole restrictor or predator guard. Built with a 5 in. Box design effectively deters sparrows from roosting. Then, press on its breast bone and crush its lungs, which will kill it instanteously. (60) $49. This non-native, predatory species is a nesting Bluebird’s worst nightmare. Keep the birdhouse 100ft from the feeder. It is made from recycled materials and is built to withstand hard weather. It is made from recycled materials and is built to withstand hard weather. Proper spacing, happy birds. 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. 25"H Dimensions: 8. 0It features a small nesting compartment that is optimized for Bluebird compatibility and discourages House Sparrows from taking up residence. Constructed from USA reforested kiln dried full dimensional cedar and ready to be mounted right away. Bed & Breakfast Platform Feeding Station. 85 $ 112. Durable tan and green recycled plastic. 125"H Dimensions: 8. First, you need to check your bluebird houses for signs of sparrows every day or two and remove anything that. Attract bluebirds to nest in your backyard. Best Nest Box: My all-time favorite nest box for bluebirds is the Nature’s Way model CWH4. In studying Bluebird anatomy, I felt they might prefer a wider entrance, so I began by turning the Peterson oval horizontally. 70. 1 Helpful. Assemble as shown (you can also use nails instead of screws). 00/Count)So, while there aren’t any bluebird houses that are 100% sparrow-resistant, there are some great nest box designs out there that do a good job of deterring house sparrows. 5" and the interior dimensions are no smaller than 5"W x 5"L x 8"H. House Sparrows prefer smaller seeds like millet, cracked corn, and milo, which are plentiful in inexpensive bird seed mixes. Build the eastern bluebird birdhouse with red cedar, pine, or almost any soft wood. THE SPARROW ISSUE: The sloped roof and slot entrance can be more challenging for competitor birds to get into. 00. Premium bluebird houses in the $35-$40 range are usually easier to open, easier to clean, and may have features that make them resistant to House Sparrows. They will take over prime nesting sites, particularly from eastern bluebirds, tree swallows, and purple martins, and usurp feeders and overwhelm other visitors, including finches, tanagers, buntings, native sparrows,. House sparrow problems, more. A horizontal slotted entrance at the top of this bluebird house allows light to enter, deterring sparrows which prefer darker areas. Of course we'll. Opening: 3. Questions about. There are toe holds under the entrance inside. Sparrow-resistant Bluebird House Set (#SRBHset) An all inclusive set, the Sparrow-resistant Bluebird House bundle includes the house, aluminum post, and guard. 99. 3. Good style for a nestcam. by Union Rustic. 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. NWB-CWH4-CP3. In addition, sparrows don't like a shallow box and bluebirds don't seem. 5"L x 7"W x 10. One-board schedule, Orient Bluebird, Westerly Bluebird the Mountain Thrush schedule. DutchCrafters Small Sparrow Resistant Bluebird Post Mount Poly Bird House - Choose Your Colors - Amish Made in America. 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. For best results do not place house near trees or bushes, placing the house in the open will work best for Bluebirds. 99 Provide beautiful, musical bluebirds a secure roosting option by adding this handmade Sparrow-Resistant Cedar Eastern Bluebird House by Prime Retreat to your yard. Here are four tips to deter sparrows: 1. 25 square inches, which makes it ideal for Western & Mountain Bluebirds. House Sparrows will invade and evict occupants of a nest box, if they can gain access. 75"W x 10"H. In the past, we've had raccoons & crows raid our bird houses but they eat the eggs or babies, they don't drop them. Amish Handcrafted Sparrow Resistant BLUEBIRD HOUSE WEATHERPROOF RECYCLED POLY Bright Color Combinations Our Bluebird Nesting Box is sure to help enhance the blue bird population of your outdoor area - providing a. One 1 x 10 x 11″ (roof) Four 1 x 6 x 10″ (front, sides, and back). Designed to be Resistant to Sparrows and Attractive to Bluebirds! Features an Opening Front Door for Easy Cleaning. The smaller interior can easily house up to 6 bluebird babies. 2k) $ 49. 97. 8 centimeters). Black PVC Nesting Trays for T-14 Martin Houses. Check out our sparrow resistant bluebird bird house selection for the very best in unique or custom, handmade pieces from our shops. Photo above by THE Holy Hand Grenade! is licensed under CC BY-ND 2. Understanding the potential harm sparrows can cause to bluebirds is essential when preventing sparrow infestation in bluebird houses. A: Actually, the sparrows you mention are named house sparrows, and not true sparrows, that were first introduced into the Boston area in 1868 to control spongy moths (gypsy moths). Gilbertson Sparrow-Resistant Bluebird House (#GBB) The Gilbertson PVC nest box features a western red cedar or brown poly-wood roof. 22. DO NOT use fishing line on the halo (it can wrap around incoming birds. Write a review. Keep wrens busy by removing their “dummy nests”. Use wren guards on active bluebird houses. House sparrows love to build a bulky nest over top of their nest and entrance. Slotted entry hole, measuring 4-1/4 x 1-1/4 inches tall. Brand New. Side opening, top pivot, 10° pitched roof. 25"H Dimensions: 8. Open the front panel for easy cleanout. ADD A SKYLIGHT !! House sparrows are and have been the bluebirds’ #1 Enemy; so let’s get started on “how to” prevent them from driving your bluebirds away. Proudly made in the USA! Sparrow-Resistant Eastern Bluebird House Dimensions: 10"h x 5-3/4"w x 8-1/2"d; 4"L x 1. To create the fishing line grid, first select an appropriate size of fishing line. This item: Kettle Moraine Recycled Bluebird Mealworm Feeder Hang or Mount (Blue, Cedar) $49. Find and Remove Their Nests. This house is designed to attract the bluebird, a colorful, family-oriented bird with both parents providing food to nestlings. Here is what helped me: Offer massive amounts of cracked corn positioned at least 15 feet away (4. In Stock Ships from OH . Made in the USA. Find perfect accommodations for your blues. These are made of UV-resistant polycarbonate plastic and stainless steel that will last long even under intense heat and rain. 2 Sparrow-Resistant Eastern Bluebird Houses by Prime Retreat. View Details. 25 square inches. This Bluebird house has an unusual opening that is designed to prevent sparrows from entering. The house sparrow is a small songbird with a conical bill and a chunky body. That is the short and sweet answer for where to place a. 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 Designed by North American Bluebird Society The flagship box of the North American Bluebird Society. spade bit (1-1/2 in. Kit Contents: Qty 4 Sparrow-Resistant Bluebird Houses Qty 4 S&K "T" Post Mounting Adapters House Opening: 3. Hummingbird Nest House - 24HBN:. 00/Count) While there aren’t any bluebird houses that are 100% sparrow-resistant, there are a few nest box designs that have been shown to deter house sparrows on some level. The 10 DIY Bluebird House Plans. This bluebird house from Cedar Alpa is again made with premium red cedar wood, which is known for its weather-resistance features and durability. Monitor nest boxes every day. In this video, I build a bluebird house with slot entry. 9) The Carl Little Bluebird Box. 9 Free Gazebo Plans. Nature's Way Bird Products CWH3 Cedar Bluebird Box House. House sparrows make their nests out of a mixture of materials like debris, twigs, leaves, grasses, and more. Eastern Bluebirds fit easily through a 1-1/2" entrance hole. But Linda Violett of California has found that somehow Western bluebirds seem to learn to control the box, despite HOSP competition. 95 - Original price $49. These Audubon bluebird birdhouses are simple, well-built, and untreated. Removing Bird Nests. 125"H Mounting: pole or post mount Construction: pine Materials Shipping & Returns. Note: Additional freight charges may apply when purchasing in multiple quantities. Follow these guidelines: Entrance Hole Size: Bluebirds prefer a 1. They also have a shallow nesting cavity. Because they adapt quickly to most deterrents, finding a single. Although no nestbox suitable for bluebirds is sparrow-proof, House Sparrows are often reluctant to use Gilbertson PVC . This Kentucky style, slot entrance bluebird house is designed to thwart sparrows. Price. Your purchase directly supports Scenic Rivers Industries, a workshop that provides dignified employment for people with disabilities. Chickadee Bird House 3/4" THICK Cedar Birdhouse Sparrow Finch & Predator Guard . If you are trying to attract bluebirds in an area where you suspect HouseEntrance Hole: For Eastern bluebirds, the entrance hole should have a diameter of about 1. House Opening: 1 ½” and 1 9/16” diameter entrance holes. PDF) NABS Bluebird FAQ (common questions) (4 pg. 2 total votes. 3) 4″ x 4″ plexiglass piece (1/4″ works great)Kit Contents: Qty 3 Coveside Sparrow-Resistant Eastern Bluebird Houses Qty 3 Erva Deluxe Birding Poles with Ground Sleeves and Mounting Adapters Opening: 4"L x 1. Basically there is no "Best" Bluebird house. Drill a 1 1/2″ diameter entrance hole located 7″ above the floor (to. Coveside Sparrow Resistant Bluebird House. Construction: pine. Mounting / Installation Type: Wall Mounted; Overall: 12'' H x 7. Est. Find helpful customer reviews and review ratings for Bluebird house - Gilbertson PVC & cedar bird house - Also can be used as Chickadee House, Wren House, or Swallow bird house - North American Bluebird Society approved - Made in USA - Bluebirds love it! - Most sparrow resistant design available. Because of all the cause that house sparrows occasion azure, it’s normal to wonder about sparrow-resistant bluebird houses. A burnt logo on this front panel attests to the thoughtful design of this roost, and enhances the cedar construction and rust resistant hardware. 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. Mount against any flat surface. Made in the USA. 99. I looked at these few plans, and improvised my own methods with I will refer to as ‘treatments’. (can be increased with side height) Lumber: 1 x 6 (box); 1 x 10 (roof) Saw cuts: crosscut, bevel A Sparrow Spooker is put over the roof of a nestbox to deter House Sparrows (HOSP). GINDOOR Bird Houses for Outside Clearance with Pole, Wood Birdhouse Blue Bird House Birdhouses for Outdoors Hanging Garden Patio Decorative for Swallow Sparrow Hummingbird Finch Throstle. You will need: 1) 1/4″ power drill. In Stock Ships from OH . An Eastern bluebird house should also have a 1 3/8 by 2 1/4 inches vertical oval hole or a 1 1/8-inch sparrow-resistant slot entrance (horizontal ) at the top front of the nest box. Below we have included free bluebird house plans, a simple one-board box that's relatively easy to build. weight: 3. House Sparrows will readily use them in the absence of bluebird competition. We recommend using weather resistant screws at least 1/2" longer than the depth of the back board on the house. Rates vary depending on pack size and destination zone.