Common problems include weather, attacks by House Sparrows, House Wrens, and climbing predators such as raccoons, cats, and snakes. Coveside Sparrow-Resistant Eastern Bluebird House. Many Bluebirders believe that the slotted entrance makes this house sparrow resistant. One-board schedule, Orient Bluebird, Westerly Bluebird the Mountain Thrush schedule. The Halo also discouraged feeding by grackles and bluejays. PDF) Nestbox Recommendations (4 pg. Male sparrows can not block entrance and trap the female Bluebird during incubation. $49. To remove the roof squeeze the sides of the house and it easily comes off for nest checks. $120. Features: The entrance hole size is 1-½". Made in the USA! Sparrow-Resistant Western Bluebird House Dimensions: 8. 5"L x 5. 1-1/2 inch slotted entry hole. Free bluebird house plans with view instruction. 95 Add to Cart. Original price $79. Attach to a pole or wall and host a bluebird family. With that said, just because hummingbirds don’t walk or hop like other birds doesn’t mean hummingbird feet are useless. Made from recycled plastic for a long life of use. Apply a bead (line) of all-purpose low Voc caulk to the top of the inner roof prior to installing the exterior roof. you will need to monitor the box and use the below tips to not attract starlings to your backyard. 00/Count)Anchor Cottage Navy Blue Bird House $48. There is. 4) Nestbox Plans. This has been achieved by bluebird house enthusiasts in the past through adding skylights to wooden boxes. Unique Birdhouse Plans. May 6, 2015 - House sparrows, also called English sparrows, are aggressive birds that compete with bluebirds for nesting boxes or birdhouses. 78. It is made from recycled materials and is built to withstand hard weather. Wrens will use holes that are smaller than 1 1/8" in diameter. 625"D x 10"H. 25" x 1. To create the fishing line grid, first select an appropriate size of fishing line. The windowsill bird feeder is stabilized by two wooden spring-set dowels. Then, press on its breast bone and crush its lungs, which will kill it instanteously. . Overall box size: 8" high x 4-½" wide. 911. That's great! I've tried to kill the house sparrows but I miss. Assemble the Sparrow House. The Most Sparrow-Resistant Bluebird House on the Market. Compare prices & save money on Outdoor Decor. house sparrows from feeding stations. To create the fishing line grid, first select an appropriate size of fishing line. Sparrow-Resistant Eastern Bluebird House Regular price $59. Sparrow Resistant Blue Bird Box | Durable Poly Lumber | Amish Made | E102 5 out of 5 stars (1k) $ 49. #1. Rustic in appearance, this wooden bird house is intended for use by serious birdersProduct Description. 99. Give bluebirds a handcrafted haven with the Audubon Cedar Bluebird House. 13"H. Attract bluebirds or Tree Swallows to eat your insects. 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 beautiful, safe and secure place for bluebirds to enjoy while keeping unwanted sparrows from overtaking the nest! Simply mount to. They are NOT sparrow-proof, but they help. They include using bird traps, excluding them with netting, applying bird repellent gel, and preventing them from re-infestation. (can be increased with side height) Lumber: 1 x 6 (box); 1 x 10 (roof) Saw cuts: crosscut, bevelCedar is probably the most affordable weather-resistant wood. Recycled Bluebird House $54. Floor area: 22 sq. 875"L x 1. Made in the USA. 5m) from your other bird feeders. Nov 4, 2022 - Explore Lyenda Pearl's board "Bird house plans" on Pinterest. Bluebird enthusiasts have been known to debate the merits of round versus slot-shaped entrances for nest boxes for years. Check out this video on Dean Rust's site (Dean is a county coordinator for the PA Bluebird Society). T his is a great, simple nesting box design developed by Tom Comfort of Antrim County and a committee of national bluebird house experts. 3 pounds. 25"H; Weight: 4 lbs. How to Sparrow-Proof a Bluebird House. Eastern blackbird list ability also have a 1 3/8 ten 2 1/4 inch vertical round drilled or a 1 1/8 inch horizontal sparrow-resistant slot entrance to the top front on the boxes . Visit The Spruce's homepage. “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. DO NOT use fishing line on the halo (it can wrap around incoming birds. Ultimate Bluebird House. 97. Sparrow-Resistant Eastern Bluebird House Regular price $59. There is only a couple of things to keep in mind when purchasing a bluebird house for Eastern Bluebird. Note: Additional freight charges may apply when purchasing in multiple quantities. Lay the floor piece on a work surface. This size allows bluebirds to enter comfortably while excluding most competing bird species. Bluebird landlords must be committed to house sparrow control by one method or a combination of; installing a sparrow spooker, removing eggs and/or trapping these invasive birds. Because they adapt quickly to most deterrents, finding a single means of sparrow-proofing is difficult. Made in the USA. Basically there is no "Best" Bluebird house. Amish Handcrafted. 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. 00/Count)Mar 10, 2015 - House sparrows, also called English sparrows, are aggressive birds that compete with bluebirds for nesting boxes or birdhouses. 5-1/2 x 1-1/8 inch slotted entry hole. The mounting block for the gilbertson pole system is installed on the back of the xbox with two exterior deck screws (2”). 75"W x 10"H. 99. CEDAR ALPHA Bluebird House. The bottom should be recessed ¼ of an inch. 2. 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. Erva Bluebird Feeder. Bird House size: 12-1/2"h x 6"w x 8-1/2"d. Screws are included to attach the horizontal arm to the vertical post and attach to the. Price: $179. Ships from and sold by KMW INC. Cedar Sparrow Resistant Bluebird House with Blue Roof - Bring a surprising and colorful look to your bluebird trail with the Woodlink Cedar Sparrow Resistant Bluebird House with Blue Roof. LEFLEUR BIRDBATH or PLANTER (4 Color Options): Solid Stone Durable Container. Made in the USA. These include Tree & Violet-green Swallows, bluebirds, chickadees, wrens, nuthatches, and possibly titmice. containing millet and cracked corn. The idea is that House Sparrows get spooked by the wire, while many other birds do not. This is because bluebirds naturally feed. 5 out of 5 stars (33) $ 57. Getting Started with Bluebirds (4 pg. Photo by stevesunusual is licensed under CC BY-NC-ND 2. House sparrows don’t compete with bluebirds for food, though, since bluebirds are insectivores and house sparrows prefer grains. 3) 4″ x 4″ plexiglass piece (1/4″ works great) Sparrow-Resistant Bluebird House Dimensions: 8. * 4 Heavy Duty Bluebird House Mounting Flanges (top or side mount option) * 4 Blowfly Inhibitor Screens. WBU Sparrow Resistant Bluebird Nest Box: Our WBU Sparrow Resistant Bluebird Nest Box is designed to thwart pesky sparrows from taking over the box. Purchase options and add-ons . 25"W x 8"D x 10. 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. Tip: we use a 16 x 16 plexiglass…. 5"W x 15"H. The PVC nest box is the most sparrow resistant. 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. 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. In this video, I'll show you five tips for how to keep House Sparrows out of your bluebird houses. House Sparrows can enter any entrance hole that ac-commodates bluebirds or swallows. The house sparrow is considered an invasive bird in many areas, causing damage and problems for native species. Cut a 22-degree bevel across the top of the front section (A). 5 inches wide: Roof. Write a review. FREE delivery Thu, Jul 27 on $25 of items shipped by Amazon. This box has a shallow 4 1/2 inch drop from. 99. Kaytee Wild Bird Food Mealworms For Bluebirds, Wrens, Robins, Chickadees, Woodpeckers, Cardinals & Chickens, 17. 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. The next trap is called a repeating nestbox trap. The other option is to clips its wings. In any mounting method, bird houses should be mounted approximately 5 feet off the ground. Another simple way to reduce the number of House Sparrows and European Starlings around your property is to avoid feeding them. Purple Martin Birdhouse size (18"h x 17-1/2"w x 17-1/2"d). #1. Of all the problems faced by bluebird landlords, house sparrows are easily the worst. Build the eastern bluebird birdhouse with red cedar, pine, or almost any soft wood. 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. If you are building a box for birds that require a larger size, such as wood ducks, kestrels, woodpeckers, etc. However, there is a great “sparrow-resistant” nest box that a lot of folks have success with called the. Poly Sparrow Resistant Bluebird Post Mount Bird House, blue birdhouse, bluebird house, Custom Birdhouse, Custom Colors, outdoor decor (45) $ 49. Mount against any flat surface. Also the nest tray takes cubic inches away from the cavity which also discourages sparrows. I bought it primarily to have a birdhouse that would be less attractive to the sparrows than my conventional wood bluebird house. The addition of the hanging wires increased the repellency to 99%. by Coveside. 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. 875"D x 13. Instead, we will consider the following two House Sparrow versus Tree Swallow. The University of Nebraska’s Magic Halo design uses a 30” wide circle of wire hung horizontally above the bird feeder. PRT-2540. There are a number of sparrow traps available on the market. To keep starlings out of a bird house, the hole must be 1. . Follow these guidelines: Entrance Hole Size: Bluebirds prefer a 1. 3″ hole saw. With three to five eggs in the average clutch, a single pair of house sparrows can quickly become a flock of 15 to 25 birds in one season, at a single nesting site. A Sparrow Spooker is put over the roof of a nestbox to deter House Sparrows (HOSP). 5 x 7-1/4 x 9-5/8 inches. 10. Made in the USA. Cut the. 99/Count) List: $19. View Details. Add to Favorites Ark Workshop Slot Entrance Cedar BLUEBIRD HOUSE box: It works! see pics. Vinyl-coated wire surrounding the feeder prevents large birds like Northern Cardinals, Blue Jays, or European Starlings from coming in. 00 Sparrow Proof Bluebird House Quantity - + As low as: $21. This will make a roughly 10 percent bleach solution. Attract bluebirds, then watch your bluebirds fledge. 2) 2 1/2″ hole saw. Dimensions: 8. Deciding what bluebird house you should get, should not be difficult or complicated. Box design effectively deters sparrows from roosting. House Sparrows will invade and evict occupants of a nest box, if they can gain access. Cedar Roof measurements: 9" x 7-¼" x 1". Position the front piece along a 4-inch edge of the floor, flush with the side piece's edge. Brood size was 4 birds per box. Sealed for Outdoor Use & Holds Water. Read. The Sparrow Resistant PVC Bluebird house features a wooden roof. $54. 3. With sheltered boxes like this, a flock is more likely to move in this time of year. Avoid using bluebird houses with larger entrance holes or slot entrances. 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. 5"L x 7. To keep starlings out of a bird house, the hole must be 1. This will allow the mylar strips to blow. Top positive review. 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. 25"H Slot Opening for Western Bluebirds; Weight: 4 lbs. In Stock Ships from OH . Learn how to make various versions of the magic halo to keep house sparrows from eating at your bird feeders. Then refine your search using the boxes below. House Opening: 1-1/2" diameter entrance hole Our top-of-the-line bluebird house features all of the key elements needed for a successful nesting experience for both tenant and landlord. It's the ideal size for bluebirds, and it includes the proper drainage and ventilation to keep babies dry. Contents [ hide] Best Bluebird Feeder Reviews. Cut a 4 by 8 1/2 inch plank of wood for each side of the house. 4k) $ 82. Bird House Hole Size To Keep Starlings Out. Gilbertson boxes, Gilwood boxes, and Troyer boxes (just to name a few) have all proven to be attractive to bluebirds and less attractive to house. 00. Opening: 4"L x 1. ) Also avoid feeding cheap seed mixes with millet and. In Stock Ships from OH . 25 square inches, which makes it ideal for Western & Mountain Bluebirds. Sparrow-Resistant BLUEBIRD HOUSE - 100% Recycled Poly Post Mount Birdhouse. 00 (5% off) FREE shipping. 125"L x 5. However, PLEASE NOTE that this design is not to be considered as predator or sparrow-proof. FREE shipping Add to. House Sparrow Nest in Bluebird Nest Box. 78. Qty 4 Woodlink Cedar Predator Guards, 1. This kentucky style, slot entrance bluebird house is designed to discourage sparrows. Ironically, this large floor actually defeats the original premise of it being “sparrow resistant” (the Foster and Smith box appears slightly smaller, but it’s not small enough). Round Blue Bird House with Copper Roof by FBUSA. 99 USD Regular price Sale price $59. 3 out of 5 stars 110. Floor Dimensions: The floor of the bluebird house typically measures around 4 x 4 inches (10 x 10 centimeters). Also the nest tray takes cubic inches away from the cavity which also discourages sparrows. Kettle Moraine Cedar Bluebird Mealworm Feeder. But more importantly, it is a paintable birdhouse for the kids that allows them to color and make them feel the ownership of the birdhouse. Here’s a brief history of the relationship between bluebirds and the invasive, non-native House Sparrow: House Sparrows are from Europe and were introduced until the Joint States in 1850. Made in the USA. Do not purchase this if you want to avoid sparrows. 5 inches wide: Roof overhang is about. Although no nestbox suitable for bluebirds is sparrow-proof, House Sparrows are often reluctant to use Gilbertson PVC boxes as well as other nestboxes that have a small interior volume. 5m) from your other bird feeders. Although not fully Sparrow proof, it has been proven to have the least desirability to them when compared to any other nesting box designs. 5-inch hole for eastern and 1-9/16-inch hole for western and mountain bluebirds, the latter working universally for all 3 species. The 22-degree bevel sets the angle of the slope for the slant front birdhouse, and it will match the angled cut for the side pieces (C). Both versions include the nest tray and include a hanging bolt with wing nut. Sparrow Proof Bluebird House (1 - 13 of 13 results) Price ($) Shipping All Sellers DutchCrafters Gilbertson Bluebird House, Outdoor Nest Box Sparrow Resistant -. Opening: 3. Original price $49. 95Ravenox Sparrow Resistant PVC Bluebird House. Bluebird houses made of PVC material have a shallow depth that sparrows dislike. To begin - select category. Woodlink NABB Audubon Bluebird Houses. 6 x 6-3/4 x 12-1/4 inches tall. Keep the threat of unwanted sparrows away from fantastic bluebirds with this Sparrow-Resistant Bluebird House with Open Top. Then, fill the bucket about three-quarters of the way full. Developed by a major university. View full details Original price $. The 5 inch by 5 inch floor meets recommendations for Eastern, Western and Mountain Bluebirds. 6 Ways to Attract Bluebirds: #1. 5" and the interior dimensions are no smaller than 5"W x 5"L x 8"H. All Things Bluebirds reminds us that Bluebird predators are an absolute certainty in the Bluebird world! Unfortunately, there are no exceptions to that rule. 17 Outdoor Chair Plans. Hang this Bluebird House in your backyard to attract not only bluebirds, but titmice, swallows, nuthatches, chickadees and wrens. Avoid Feeding. 4. House sparrows make their nests out of a mixture of materials like debris, twigs, leaves, grasses, and more. ($10. PDF) Predator Control (4 pg. More specifically, 5′ from the ground to the bottom of the birdhouse. WBU Sparrow Resistant Bluebird Nest Box: Our WBU Sparrow Resistant Bluebird Nest Box is designed to thwart pesky sparrows from taking over the box. Many Bluebirders believe that the slotted entrance makes this house sparrow resistant. Made in the USA, available exclusively at Duncraft. In this video, I'll show you five tips for how to keep House Sparrows out of your bluebird houses. 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). Fits outside windows with dimensions from 20" to 40" wide. 19 Creative DIY Deck Plans and Design Ideas. Some great inexpensive books on building bird houses: Approximately 1 dozen cavity-nesting birds will use boxes with a 1 1/2" entrance hole. House Sparrows are vicious competitors. 1 Helpful. 3. If you have an old nest box or a new one, this technique will work. You can read these tips in greater detail on my website her. We would like to thank the legions of NestWatchers who monitored 12,274 nest boxes (both guarded and unguarded), enabling this comparative study. A minimum of 5′ enables most people to easily monitor and maintain the house. 99 USD Unit price / per . Constructed out of Eastern White Pine. Features: The entrance hole size is 1-½" Depth of the compartment is 6-¾" width is 4" Overall box size: 8" high x 4-½" wide; Cedar Roof measurements: 9" x 7-¼" x 1"Note: This package contains 2 of the Sparrow-Resistant Cedar Eastern Bluebird Houses by Prime Retreat. 4. 3. 5" dia. 70birds. Now: $51. 5"W x 10"HPlace away from dense cover (shrubs, thickets) and woods. “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. $ 49. 10 Free Bar Stool Plans. 9) The Carl Little. Qty 1 Stokes Bluebird Book: The Complete Guide to Attracting Bluebirds. 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. This blue birdhouse is sparrow resistant. 00. This cypress house features a slanted front to further discourage sparrows. Each wood piece is 1/2 x 1/2 x 8 inch long. . 25" opening provides a slot entrance for these bluebirds. Kestrel & Screech Owl House Regular price $79. 5"D x 7"W x 10. 99 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. 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. This lasting home, crafted from weather resistant cedar, provides songbirds a wonderful roosting spot. House Sparrows prefer smaller seeds like millet, cracked corn, and milo, which are plentiful in inexpensive bird seed mixes. Add to Favorites Poly Sparrow Resistant Bluebird Post Mount Bird House, blue birdhouse, bluebird house, Custom Birdhouse,. 75"W x 10"H; Opening: 4"L x 1. SRP: $65. Gilbertson boxes, Gilwood boxes, and Troyer boxes (just to name a few) have all proven to be attractive to bluebirds and less attractive to house sparrows. 7 3. A few species, including cardinals, will happily feed under the Halo but may prefer a feeding station without the added pendant wires. Use of Gilbertson PVC Boxes— Although Gilbertson PVC boxes are not 100% sparrow resistant, House Sparrows seem to be. PDF) Monitoring Bluebird Nest Boxes (4 pg. Made from eastern white pine. Category: Home & Garden, Bird Feeders. It’s the ideal size for bluebirds, and it includes the proper drainage and ventilation to keep babies dry. Now: $73. 49. Keep the birdhouse 100ft from the feeder. 99. $49. How to Get Rid of House Sparrows in Your Yard. Features: Made from Western Red Cedar for light weight and durability. To attach this piece, hammer nails through the front piece into the edges of the base and walls. (1. 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. To begin - select category. Another important thing to keep in mind when putting up your bluebird house, is to keep it away from buildings, like houses and barns. Oceek Cedar Blue Bird Box House Wood Bird House Bluebird Box House Cedar Wren and Chickadee Wren Home Outdoor Hanging Wood Birdhouse No Assembly Required Hummingbird House (1Pack 3115 Assembled). NABS was founded in 1978 by Dr. If only it worked on House Sparrows like it does on wasps! In the rest of this article, I will explain a few steps you’ll need to take to keep wasps out of your bluebird houses. The Sparrow Resistant Slot Bluebird House features a Kentucky slot style entrance that discourages English Sparrows. 99 USD Regular price Sale price $79. Durable tan and green recycled plastic. $15 for 18k White Gold Filled Crystal Fashion Dangle Earrings - Including Shipping!Add a layer of grass, wood shavings, or even a scrap of carpet to the bottom of the house for better insulation and easier cleaning in the spring. 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. Recycled Bluebird House $54. 00/Count) FREE. Keep the threat of unwanted sparrows away from fantastic bluebirds with this Sparrow-Resistant Bluebird House with Open Top. In Stock Ships from OH . See more ideas about bird feeders, bird, backyard birds. Keep wrens busy by removing their “dummy nests”. Sadly, we found 3 dead baby birds outside a bird house on our hillside. Layout and the drill the 1-1/2" entrance hole in the front (A). Managing different feeding sources effectively limits the sparrow’s access to bird feeders. fishing line (mono-line) to make bluebird nest boxes House Sparrow resistant, but few detailed plans on how to do it. Male sparrows can not block entrance and trap the. Note: Additional freight charges may apply when purchasing in multiple quantities. Squirrels can be a ton of fun to watch. Baffles help protect from other predators–like cats, raccoon and snakes–too. Mounting: post or pole mount. PDF) House Sparrow Control (4 pg. 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. 39; Annapolis Lighthouse Bird House $105. VP Home Hanging Bird Houses for Outside, Hand-Painted Bird Houses for Outdoors Decorative Birdhouses (Flowerpot) Solid Made for Bluebirds, Sparrows, Chickadees and Purple Martins. From my experience, this house is not sparrow resistant. So let’s find out how to sparrow proof a bluebird house. This cypress house features a slanted front to further discourage sparrows. House sparrows chase bluebirds away, crush their eggs, kill nestlings and also kill adult bluebirds. 5"L x 5. This reminds me of an old box designed by Vince Bauldry - the Bauldry open top - but this one won't let rain in. Mount it on a metal pole—cats, raccoons, weasels and rats can climb trees and. Eastern Bluebird. It works similar to the elevator bait trap but is built to resemble a birdhouse. 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. 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. 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. This will allow bluebirds to enter, while deterring larger birds like sparrows. SOE-SE544. House Opening: 1. Now: $56. 4-3/4 x 4-3/4 x 10-1/2 inches tall. Qty: more info: Coveside Two-Sided Observation Eastern Bluebird House. Events, Coupons, Classifieds. Bluebirds usually produce two or three. Now: $65. Therefore, they need bird boxes with a substantial interior volume that’ll accommodate their dome-shaped nests. Audubon's collection of bird feeders, houses, bird baths, and accessories have been reviewed by our science team and field-tested for quality assurance. PDF Booklet) EABL Nesting. Smart Living Transform Your Home with These Cutting-Edge GadgetsSparrow-Resistant Eastern Bluebird House by Prime Retreat. 95 Add to Cart. This spring I noticed the bluebirds entering the box and now it is in use by the bluebirds. 8 centimeters). ) Any larger and unwanted species could invade! If the entry is larger than 1. Description. Plant Filter. * 4 Best 5-Piece Bluebird House Poles w/Ground Socket. 25"L x 1. Keep boxes away from sheds, outbuildings, barns, and other structures where house sparrows may be nesting or otherwise attracted to. Any mounted nesting box should have a squirrel baffle. 7k) $ 4. 5" thick, pine block included to decrease the box depth and further deter sparrows. Gilbertson Sparrow-Resistant Bluebird House (#GBB) The Gilbertson PVC nest box features a western red cedar or brown poly-wood roof. How customer reviews and ratings work See All Buying Options.