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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 hikes, ...more ↓

Sierran Treefrog 1
Pseudacris sierra
Western Toad 2
Anaxyrus boreas
Northern Pacific Rattlesnake 3
Crotalus oreganus oreganus
Pacific Ringneck Snake 4
Diadophis punctatus amabilis
Western Black-headed Snake 5
Tantilla planiceps
Jimson Weed 6
Datura stramonium
Cleveland Sage 7
Salvia clevelandii
Red Fox 8
Vulpes vulpes
Mountain Lion 9
Puma concolor
American Badger 10
Taxidea taxus
Black Rat 11
Rattus rattus
Little Brown Bat 12
Myotis lucifugus
Mexican Free-tailed Bat 4
Tadarida brasiliensis
False Honey Ants 13
Prenolepis
Arboreal Salamander 14
Aneides lugubris
Jerusalem Cricket 15
Stenopelmatus fuscus
Omnivorous Looper 15
Sabulodes aegrotata
Pacific Gopher Snake 16
Pituophis catenifer catenifer
Black-tailed Jack Rabbit 17
Lepus californicus
Common Raccoon 18
Procyon lotor
Kit Fox 19
Vulpes macrotis
Perizoma costiguttata 20
Straight-faced Windscorpions 21
Eremobatidae
White-shouldered House Moth 22
Endrosis sarcitrella
Hydriomena nubilofasciata 23
Harvestmen 4
Opiliones
Mayflies 24
Ephemeroptera
Great Horned Owl 25
Bubo virginianus
Barn Owl 4
Tyto alba
Black-crowned Night-Heron 26
Nycticorax nycticorax
Northern Saw-whet Owl 27
Aegolius acadicus
Pygmy Owls 28
Glaucidium

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

Photo Credits

  • 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)
  • 4. (c) nataliemarisa, all rights reserved
  • 5. (c) ap2il, some rights reserved (CC BY-NC)
  • 6. (c) Roger Sanderson, some rights reserved (CC BY-NC)
  • 7. (c) The Ruth Bancroft Garden, some rights reserved (CC BY-NC)
  • 8. (c) matt knoth, some rights reserved (CC BY-NC-ND)
  • 9. (c) Valerie, some rights reserved (CC BY-NC-ND)
  • 10. (c) Erin and Lance Willett, some rights reserved (CC BY-NC-ND)
  • 11. (c) Alex O'Neal, some rights reserved (CC BY-SA)
  • 12. (c) Zack, some rights reserved (CC BY-NC-SA)
  • 13. (c) Ian Marsman, some rights reserved (CC BY-NC-ND)
  • 14. (c) Bill Bouton, some rights reserved (CC BY-NC-SA)
  • 15. (c) Franco Folini, some rights reserved (CC BY)
  • 16. (c) Jill Matsuyama, some rights reserved (CC BY-NC-SA)
  • 17. (c) Mike Baird, some rights reserved (CC BY)
  • 18. (c) Josh More, some rights reserved (CC BY-NC-ND)
  • 19. (c) marlin harms, some rights reserved (CC BY)
  • 20. (c) johnvillella, some rights reserved (CC BY-NC-SA)
  • 21. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
  • 22. (c) Dick, some rights reserved (CC BY-NC-SA)
  • 23. (c) Chris Cook, some rights reserved (CC BY-NC), uploaded by Chris Cook
  • 24. (c) Mick Talbot, some rights reserved (CC BY)
  • 25. (c) Minette, some rights reserved (CC BY-NC)
  • 26. (c) Shenghung Lin, some rights reserved (CC BY-NC-ND)
  • 27. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
  • 28. (c) Mike (NO captive birds) in Thailand, some rights reserved (CC BY-NC-ND)

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