Type: report

Article abstract: Hollenbeck Canyon Wildlife Area (HCWA), a 3,200-acre property historically used as cultivated agriculture and grazing lands, became part of the California Department of Fish and Game (CDFG) reserve system in 2001. Following this acquisition, the U. S. Geological Survey conducted surveys to establish baseline species data. Herpetofauna pitfall arrays and incidental sightings detected 2 amphibian species, 10 lizard species, and eight snake species. Twenty-eight ant species were recorded using ant pitfall traps co-located at the herpetofauna pitfall arrays. Bird point counts and incidental bird sightings recorded 104 bird species present at Hollenbeck Canyon Wildlife Area and the neighboring Rancho Jamul Ecological Reserve (RJER). Sherman live traps, combined with herpetofauna pitfall arrays small mammals captures, documented 14 small mammal species present at Hollenbeck Canyon Wildlife Area. Thus a total of 134 native vertebrate species, 28 native invertebrate species (ants) and four non-native vertebrate species were recorded during these surveys. Of these, one avifauna species is listed as a California Department of Fish and Game endangered species, two herpetofauna species, 14 avifauna species and three small mammal species are listed as California Department of Fish and Game Species of Special Concern, and two herpetofauna species and seven avifauna species are covered under the San Diego Multiple Species Conservation Program.