By including a easy predator guard to fowl nesting packing containers you possibly can cease animals like racoons, snakes, squirrels, and different fowl species from raiding the nest.

At no cost vegetation see Free Wren Nesting Field Plans and Free Chickadee Nesting Field Plans.

Wren nesting box with predator block at entry hole.

DIY Predator Guard

Wren nesting box with predator block.
Predator block round entry gap of nesting field

If you’re offering nesting packing containers for birds in your property, you will need to embody what are known as predator “blocks” or “guards” as properly.

A predator block or guard is just an additional piece of wooden mounted to the entrance of the field. The guard has a gap drilled in its middle the identical measurement as the prevailing nesting field entry. By doubling the depth of the entry gap this manner, different animal species discover it rather more tough to enter or attain into the field.

It really works as long as your nesting field is correctly designed with the entry gap proper diameter for the precise species nesting there. There’s extra on this under.

Nesting Field Predators

Once I began utilizing nesting packing containers for the wrens in our backyard, raccoons and different animals quickly caught on that they might attain into the field and steal the eggs or hatchlings.

A wildlife digicam set as much as detect movement at night time confirmed my suspicions.


These nighttime bandits had been certainly serving to themselves to the contents of the field. Different fowl species like starlings had been getting into the field in the course of the day.

Whereas I attempt to not intervene unnecessarily within the meals net, I felt like I ought to do extra to guard these birds.

That’s once I realized about predator guards. I used to be skeptical as a result of they’re so easy, however they actually do assist.

You possibly can see how the block stops the dangerous guys within the video (under).

The best way to Make a Predator Block

Use a bit of untreated lumber (similar wooden used to construct the nesting field). It needs to be no less than an inch bigger (on all sides) than the prevailing entry gap.

Minimize out a gap on the brand new block to match up with the prevailing entry gap.

Connect the predator block to the nesting field.

Whereas it’s unrealistic to suppose a predator block will cease all attainable predators, they actually do cut back the variety of threats.

Nesting Field Ideas

Decorative birdhouses versus a proper nesting box.

Together with including a predator block, you will need to select the best nesting field design for the precise fowl species you need to entice.

Each species has completely different wants for the scale and form of the field in addition to the diameter of the entry gap. Even a distinction of one-quarter inch issues.

You possibly can learn extra tips about nesting packing containers, really useful entry gap sizes, and why ornamental birdhouses aren’t really useful right here.

After getting the best field, the place you mount it additionally issues. The wants of the species you’re internet hosting will decide one of the best peak, course (in relation to the solar and wind) in addition to the really useful spacing between packing containers to respect fowl territories.

Utilizing a Nesting Field Predator Guard

Wrens Utilizing Nesting Field

I bought this footage utilizing my wildlife digicam close to the nesting field. Wrens are such enjoyable birds to observe. They mate for all times and common between 3 and seven eggs in every brood, elevating as much as 3 broods per 12 months.

So cute! And such characters. However slightly too enticing to the larger guys on the meals chain.

That’s why I added the predator block across the entrance.

Predator #1

Watch as this starling tries to get within the field. You possibly can see how the baffle block actually does make it unattainable for him to get inside:

Predator #2

With the movement detection on at night time, I occurred to get a number of photos and quick movies with the automated wildlife digicam of a racoon on the fence above the nesting field.

The footage is manner too darkish to share however upon zooming in and inspecting it, I might inform the raccoon stood on the nesting field and tried to succeed in inside a number of occasions.

Raccoons may try to raid nesting boxes at night. See what you can do to stop them!

Simply by having the predator block, the raccoon couldn’t bend his arm sufficient to succeed in contained in the field.

Predator #3

Chipmunk! I didn’t get a photograph however I really noticed the chipmunk attempt to climb within the field whereas the mom fowl was inside. The male wren got here down from the tree and attacked the chipmunk, actually using on the chipmunk’s again and pecking him as he fled the scene. Loopy!


Easy Birdhouses & Feeders book.

Simple Birdhouses & Feeders, Easy Initiatives to Entice & Retain the Birds You Need  by Michael Berger

Contains plans for constructing 16 completely different nesting packing containers, 10 fowl feeders, and a few birdbaths as properly. Included is info on the wants of assorted fowl species, which supplies to make use of, the place to find the birdhouse, and what to anticipate when your birds expect.

The ebook consists of birdhouse plans for the next birds:  America Robin, Mourning Dove, Home Wren, Black-Capped Chickadee, Tufted Titmouse, Easter Bluebird, Flycatcher, Norther Flicker, Woodpecker, Wooden Duck, American Kestrel, Barred Owl, Screech Owl, and Barn Owl.

I find it irresistible when such easy options actually work.

~Melissa the Empress of Filth ♛

Wren nesting box with predator block.


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