If you can’t get outside, why not bring the outside in by downloading our bird song radio app? If you don't have the special drill bit for making the 3.2cm round hole, you can use a jigsaw to cut a square or wedge-shaped hole at the top of the front, as in the diagram. I searched many sites but this was the best. Nonprofit environmental organization focused on conservation, citizen science, and public science education, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f9\/Make-a-Sparrow-Nestbox-Step-1-Version-2.jpg\/v4-460px-Make-a-Sparrow-Nestbox-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/f\/f9\/Make-a-Sparrow-Nestbox-Step-1-Version-2.jpg\/aid1578111-v4-728px-Make-a-Sparrow-Nestbox-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"
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