Eastern bluebirds (Sialia sialis), often referred to as “harbingers of spring,” are small — about 7 inches — cavity nesters often found near meadows. A relative of the robin, this native songbird ...

Read this before you start building a nest box for your local birds. Seeing a plywood nest box tucked amongst the branches of a tree or hoisted around its trunk is a familiar sight to many Australians ...

Some species, such as the marsh tit, preferred tree cavities as nesting sites Conservationists cannot consider nest-boxes to be a substitute for naturally occurring tree cavities, a study has ...