837 thumb Nightlife of the East Bay Area

A guide to some of the species known or expected to inhabit the California East Bay area, that are nocturnal or otherwise active at night. This guide is focused on Contra Costa and Alameda counties, but most species may be found in the wider region. Avoid using white lights on your night ...more ↓

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Sierran Treefrog 1
Pseudacris sierra
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Western Toad 2
Anaxyrus boreas
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Northern Pacific Rattlesnake 3
Crotalus oreganus oreganus
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Pacific Ringneck Snake 4
Diadophis punctatus amabilis
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Western Black-headed Snake 5
Tantilla planiceps
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Jimson Weed 6
Datura stramonium
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Cleveland Sage 7
Salvia clevelandii
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Red Fox 8
Vulpes vulpes
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Mountain Lion 9
Puma concolor
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American Badger 10
Taxidea taxus
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Black Rat 11
Rattus rattus
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Little Brown Bat 12
Myotis lucifugus
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Mexican Free-tailed Bat 13
Tadarida brasiliensis
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False Honey Ants 14
Prenolepis
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Arboreal Salamander 15
Aneides lugubris
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Jerusalem Cricket 16
Stenopelmatus fuscus
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Omnivorous Looper 16
Sabulodes aegrotata
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Pacific Gopher Snake 17
Pituophis catenifer catenifer
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Black-tailed Jack Rabbit 18
Lepus californicus
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Common Raccoon 19
Procyon lotor
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Barn Owl 28
Tyto alba
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Black-crowned Night-Heron 29
Nycticorax nycticorax
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Northern Saw-whet Owl 30
Aegolius acadicus
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Pygmy Owls 31
Glaucidium

Edited by nataliemarisa, some rights reserved (CC BY-SA)

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  • 1. (c) Natalie McNear, some rights reserved (CC BY-NC)
  • 2. (c) J. N. Stuart, some rights reserved (CC BY-NC-ND)
  • 3. (c) Ken-ichi Ueda, some rights reserved (CC BY)
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  • 13. (c) New Mexico Energy, Minerals and Natural Resources Department , all rights reserved, uploaded by nataliemarisa
  • 14. (c) Ian Marsman, some rights reserved (CC BY-NC-ND)
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  • 17. (c) Jill Matsuyama, some rights reserved (CC BY-NC-SA)
  • 18. (c) Mike Baird, some rights reserved (CC BY)
  • 19. (c) Josh More, some rights reserved (CC BY-NC-ND)
  • 20. (c) marlin harms, some rights reserved (CC BY)
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  • 22. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
  • 23. (c) Dick, some rights reserved (CC BY-NC-SA)
  • 24. (c) greenrosettas, some rights reserved (CC BY-NC), uploaded by Chris Cook
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  • 29. (c) Shenghung Lin, some rights reserved (CC BY-NC-ND)
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  • 31. (c) Mike (NO captive birds) in Thailand, some rights reserved (CC BY-NC-ND)