Assertion: petrel's egg | /r/HasProperty | single
Facets:
Source sentences:
text: In August 2017, Queensland Parks and Wildlife Services (QPWS) staff confirmed a herald petrel chick had hatched on Raine Island after sighting an adult herald petrel taking care of a single egg in a nest in June 2017.
text: Blue petrels lay a single egg in a nest inside a burrow.
text: The southern giant petrel is more likely to form loose colonies than the northern, both species laying a single egg in a rough nest built about 50 cm (20 in) off the ground.
text: The Southern Giant Petrel is more likely to form loose colonies than the Northern, both species laying a single egg in a rough nest built about 50 cm (20 in) off the ground.