These nest boxes are ideal for most garden birds and offer 1.5cm thick wooden walls for insulation. Perfect for Robins, in particular, these birdhouses come in a great value pack of two allowing you to position them at different vantage points. During the colder months, providing shelter for our garden visitors is essential, and these sturdy bird boxes are a perfect welcome for our feathered friends. It is recommended that your site robin nest boxes be no more than 1 - 2 metres high.