Assertion: martin's nest | /r/HasProperty | old
Facets:
Source sentences:
text: Now, some say that it is not necessary to clean out old nests, and there have been tests done that show that the martins will readily return to old nests, but I like to clean mine out and here are my reasons.
text: The nests are virtually always in a cavity, typically in a building or other structure (look for them in streetlights and traffic signal supports), an old woodpecker hole, or a nest box.