Assertion: woodpecker's cavity | /r/ObjectUse | used for roosting
Facets:
value: by many bird species
type: OTHER
Source sentences:
text: Their hole-making abilities make their presence in an area an important part of the ecosystem, because these cavities are used for breeding and roosting by many bird species that are unable to excavate their own holes, as well as being used by various mammals and invertebrates.