Assertion: petrel's population | /r/HasProperty | estimated for san gallán
Facets:
Source sentences:
text: A total population of 12,216 breeding pairs was estimated for San Gallán and La Vieja Islands in Peru, with some small additional breeding colonies reported for Corcovado Island in Peru, as well as Pan de Azucar Island, Choros islands, Grande and Pajaros islands in Chile.