Over 300 of native mammals, birds, reptiles and frogs in Australia use tree hollows, and 114 of these species are birds. Most of these birds use tree hollows for nesting purposes, however a few species including Masked Owls, Sooty Owls, Australian Owlet-Nightjars and White-Throated Tree Creepers also use tree hollows to sleep in year-round. Some … Continue reading Hollow using species: birds