It is known to harass swallows while they are roosting and dispersing from roosts. These birds usually remain in one cave or other roosting/nesting site. Beeches and oaks produced the mast needed to support nesting and roosting flocks. These are usually placed along favoured feeding, roosting or nest sites. The zebra finch builds both a roosting and breeding nest. They have flexible roosting and foraging habitat requirements. Megabats fly to roosting and foraging resources. Roosting and nesting commensal with humans create aesthetic and health concerns. Woodpeckers are diurnal, roosting at night inside holes and crevices. The common nighthawk is recognized to discharge feces around nest and roosting positions. Owls are generally nocturnal and/or crepuscular and spend much of the day roosting. At roosting sites this fungus can thrive in accumulated droppings. Roosting bats are restless until midmorning. Cliffs and rock ledges are used for roosting and breeding in the wild. Deforestation of their habitats has resulted in the loss of critical roosting habitat.