If you are thinking about building some bird nest boxes for your home, I can tell you now it's a great idea. I mean everyone needs a home that includes our feathered friends. There's nothing quite like looking out of your window and seeing the birds enjoying your new nesting box creation. They are simple to make especially if you have some good woodworking plans.
You do not need any expensive wood for building bird nest boxes, some cheap 15 mm exterior grade plywood will do the job nicely.
I'm not gonna try and explain the building process here because you really need some plans for that, but what I will make sure is that you are aware of some valuable tips for ensuring that your bird boxes make good homes for your garden birds.
One essential thing that many people forget when building a bird nest box is to make some holes on the bottom board. This will allow some much-needed ventilation and it will help keep the nest nice and dry.
To make a really professional nesting box the roof should be able to lift off. It's best if you use two hinges at the back of the box which will enable the lid to easily lift up.
The entry hall can be anywhere between 25 to 32 mm in diameter, depending on what kind of species of bird you want to attract to the box. I suggest you do a little bit of research before making the entry hole. For tree sparrows and pied flycatchers, about 28 mm is enough. For slightly larger birds like house sparrows and nuthatches the hole will need to be at least 32 mm.
Make sure you finish your bird box with a non-toxic exterior wood finish for the safety of the Birds and to avoid putting them off because of the vapours. It's a safe bet to leave your box for a couple of days once you've applied the exterior wood finish.
Making a bird box is a nice quick project that will bring your garden to life.