Assertion: auk's nest | /r/HasProperty | built
Facets:
Source sentences:
text: The male does most of the work, while the female perches on the shrub or tree where the nest is being built to watch for predators.
text: Usually, two broods are attempted, although three to four separate nests may be built before a pair succeeds.
text: No actual nest is built.
text: No nest is built and the eggs are laid directly on the substrate of the site.