Attract Barn Swallows: Build the Ultimate Bird House!

Barn Swallows, known for their beneficial insect control, are a welcome sight around any property. A properly constructed barn swallow bird house, often built using readily available pine wood, provides the ideal nesting location for these birds. Many resources, such as information from the Cornell Lab of Ornithology, provide valuable insights into the specific dimensions and placement that attract barn swallows to your barn swallow bird house. Understanding these details significantly increases your chances of successfully providing a home for these fascinating creatures.

Image taken from the YouTube channel OklahomaGardening , from the video titled Building a Barn Swallow Nest .

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Attract Barn Swallows: Build the Ultimate Barn Swallow Bird House!

Barn swallows are graceful, beneficial birds that are a welcome sight around farms and open areas. Attracting them to your property is not only rewarding but also helps control insect populations. One of the best ways to entice these avian acrobats is by providing them with a suitable nesting site: a well-constructed barn swallow bird house. This guide will walk you through creating the ultimate barn swallow bird house to attract these fascinating birds.

Understanding Barn Swallow Nesting Preferences

Before diving into construction, it’s crucial to understand what barn swallows look for in a nesting site. These birds are not cavity nesters like bluebirds; they prefer open structures that offer a protected ledge or cup-shaped base for building their mud nests.

Open Access: Barn swallows need easy access for flight. Avoid enclosed spaces with small entrances.
Overhead Protection: A roof or overhang provides shelter from the elements.
Rough Surface: A rough surface allows the swallows to better adhere their mud nests.

Designing Your Barn Swallow Bird House

The key to a successful barn swallow bird house is mimicking their natural nesting locations. You won’t be building a traditional birdhouse with a hole. Instead, you will create a platform or ledge that they can use as a starting point for their nest.

Types of Barn Swallow Bird Houses

There are several designs you can choose from, each with its own advantages:

Simple Ledge: This is the easiest to build. It’s simply a horizontal platform attached to a wall or under an eave.
Cup-Shaped Base: A pre-made or carefully crafted cup-shaped base provides a head start for nest construction.
Multiple Platforms: Offering multiple platforms can attract a small colony of barn swallows.
Under Eave Platform: Attaching a platform directly to the underside of an eave can provide excellent protection.

Dimensions and Materials

The following dimensions are a guideline. Adjust based on your needs and the available space.

Platform Size: A platform should be at least 6 inches wide and 8 inches deep. For multiple platforms, space them at least 12 inches apart.
Cup-Shaped Base Dimensions: A cup should be about 4 inches in diameter and 2 inches deep.
Material: Untreated rough-sawn lumber or plywood is ideal. Avoid treated wood as it can be harmful to birds. The rough surface provides a better grip for nest building.

Essential Design Features

Rough Surface: Ensure the platform or base has a rough surface. You can achieve this by using rough-sawn lumber, adding grooves, or applying a layer of textured paint (non-toxic and bird-safe) to the surface.
Drainage Holes: Drill small drainage holes in the platform to prevent water from pooling.
Predator Deterrents: While not always necessary, consider adding a predator guard below the platform to deter climbing predators like cats. A simple skirt of sheet metal can work.

Building Your Barn Swallow Bird House: A Step-by-Step Guide

This guide focuses on building a simple ledge-style bird house.

Gather Materials: You’ll need:
- A piece of untreated rough-sawn lumber or plywood (at least 6" x 8").
- Screws or nails.
- Drill (optional, for pilot holes).
- Saw.
- Measuring tape.
- Pencil.
Cut the Platform: Cut the lumber to the desired size (e.g., 6" x 8").
Prepare the Surface: If the lumber is smooth, rough it up with sandpaper or add shallow grooves with a saw.
Drill Drainage Holes: Drill a few small drainage holes in the platform.
Mount the Platform: Securely attach the platform to a suitable location (see section below). Use screws or nails appropriate for the mounting surface.

Placement and Location

Placement is crucial for attracting barn swallows. Consider these factors:

Open Area: Choose a location with an open flyway, free from obstructions like trees or dense shrubs.
Proximity to Water and Mud: Barn swallows need mud for nest building. A location near a pond, stream, or even a consistently damp area is ideal.
Sheltered from Wind and Rain: A location under an eave or overhang provides protection from the elements.
Height: Mount the platform at least 8 feet above the ground.
Avoid Areas with Excessive Human Activity: While barn swallows are accustomed to human presence, they prefer areas with relatively low disturbance.

Maintaining Your Barn Swallow Bird House

Maintaining your barn swallow bird house is simple:

Annual Cleaning: After the nesting season (usually in late fall or early winter), remove old nests to prevent parasite buildup.
Repair Damage: Inspect the platform annually for any damage and make necessary repairs.
Monitor for Pests: Watch for signs of unwanted pests, such as wasps or spiders, and take appropriate (and bird-safe) measures to control them.

Troubleshooting: Why Aren’t Barn Swallows Using My Bird House?

If barn swallows aren’t immediately attracted, don’t be discouraged. Here are some possible reasons and solutions:

Problem	Possible Solution
Location is unsuitable	Relocate the platform to a more open area or closer to water/mud.
Platform is too smooth	Rough up the surface or add textured paint.
Too much disturbance	Choose a quieter location.
Other birds are occupying it	Remove competing nests and consider adding multiple platforms.
It just takes time!	Be patient. It may take a season or two for barn swallows to discover your bird house.

FAQs: Attract Barn Swallows with Your Bird House

Got questions about attracting barn swallows with a bird house? Here are some common queries answered.

What’s the ideal location for a barn swallow bird house?

Barn swallows prefer open areas with a clear flyway. Mount your barn swallow bird house under eaves, bridges, or other sheltered locations, at least 8-12 feet off the ground. This provides protection and easy access.

What materials are best for building a barn swallow bird house?

Use rough-sawn lumber or plywood for the nesting shelf. Barn swallows need a surface they can easily grip. Avoid treated wood, which can be harmful. A sturdy base is important for your barn swallow bird house.

Do I need to add nesting materials to the barn swallow bird house?

No, barn swallows are excellent nest builders and prefer to construct their own nests. Providing mud nearby, however, can be helpful, particularly in drier areas. They use mud to create their nests inside the barn swallow bird house.

How can I protect my barn swallow bird house from predators?

Placement is key. Choose a location inaccessible to cats and other climbing predators. Consider adding a predator guard if necessary. Regularly check the area around the barn swallow bird house for any potential threats.

Alright, now you’re ready to get those barn swallows nesting! Hopefully, this guide helps you create the perfect barn swallow bird house. Happy building and birding!