Parastrellus hesperus Western Pipistrelle ID: 1073 3283 3181 0057 [detail] Glenn and Martha Vargas © 2002 California Academy of Sciences

Pipistrellus spp. Pipistrelles ID: 0000 0000 0113 0608 [detail] © 2013 Simon J. Tonge

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos.