This map shows “Critical Habitat” as defined by the Endangered Species Act overlaid on a landsat image of Oahu. Critical habitat is habitat that is deemed crucial for endangered species, many of which happen to be birds.
Sources:
-landsat image, and critical habitat: http://planning.hawaii.gov/gis-home-page/download-gis-data/
-landsat image, and critical habitat: http://planning.hawaii.gov/gis-home-page/download-gis-data/