Nest boxes give bushfire-affected birds, marsupials a safe, low-toxic place to call home FriFriday 11 updated SatSaturday 12 These nest boxes provide non-toxic habitat for displaced wildlife. ( Share Print text only Cancel This year lots of people have been hammer-ready, knocking up makeshift homes for animals that lost their habitats in last summer's fires. But glues and varnishes used for constructing nest boxes mean that people could be building useful yet unhealthy products. Conservation entrepreneur David Brook said he put the health of his furry clients first by doing away with toxic building materials. Non-toxic, sustainable nest boxes are made with the health of wildlife and the planet in mind.