Assertion: peregrine falcon's nest | /r/HasProperty | built by other birds
Facets:
Source sentences:
text: They may sometimes use nests that were built by other birds.
text: Peregrine falcons may use nests built by eagles, hawks, or other birds.
text: Like gyrs, they also move into nests built by other birds, and, as they explore the north, they are finding gyrfalcon homes quite comfortable indeed.
text: They may sometimes use nests that were built by other birds.