Assertion: petrel's population | /r/CapableOf | use same nest sites
Facets:
value: at different times of year
type: TEMPORAL
Source sentences:
text: Recent discoveries of 'cold season' and 'warm season' populations, which use the same nest sites at different times of year, and also differ in terms of vocalisations and moulting period, may hint at the existence of two 'cryptic species' within the currently understood limits of the species.