Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Whale Sanctuary of El Vizcaino' has mentioned 'Birds' in the following places:
Occurrence Sentence Text Source
The Vizcaxc3xadno is also the habitat of the desert bighorn sheep (Ovis canadensis nelsoni), Mule deer (Odocoileus hemionus peninsulae), and dozens of resident and migratory birds.
The surrounding wetlands attract an extraordinary diversity and abundance of resident and migratory bird species with several hundreds of thousands of wintering birds.
The first applicable conservation effort is the Convention for the Protection of Migratory Birds and Game Mammals, a bilateral agreement between Mexico and the United States of America ratified in 1937.