Complaints about Nuisance Animals

Animal Bite Complaints

  • Palo Alto:
    Regular, on-duty Animal Control Officers (ACO) investigate bite complaints and quarantine animals (650-496-5971). After hours, police will take a report, and an ACO will follow up to quarantine animals (Dispatch: 650-329-2413).
  • Los Altos:
    Regular, on-duty ACO's investigate bite complaints and quarantine animals (650-496-5971). After hours, police will take a report, and an ACO will follow up to quarantine animals (650-948-8223).
  • Los Altos Hills:
    Regular, on-duty ACO's investigate bite complaints and quarantine animals (650-496-5971). After-hours services are only available if the animal is at large, in which case an on-call ACO will respond (Dispatch: 650-329-2413).
  • Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills:
    Regular, on-duty County ACO's investigate bite complaints and quarantine animals (408-465-2920). After-hours services are not available.

Barking dog complaints

  • Palo Alto: Regular, on-duty ACO's investigate barking-dog complaints. After hours, police officers respond. Call Dispatch: (650-329-2413.
  • Los Altos: Los Altos Police investigate complaints (650-948-8223).
  • Los Altos Hills: Refer complaints to Santa Clara County Sheriff's Department (408-299-3233).
  • Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills: On-duty County ACO's might provide some services. Call 408-465-2920 to discuss.

Animal Quarters Sanitation 

  • Palo Alto: Regular, on-duty ACO's investigate sanitation complaints (650-496-5971).
  • Los Altos, Los Altos Hills, Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills: No services available.

Racoon, Opossum, Skunk, and Squirrel Complaints 

  • Palo Alto:
    We provide advice on deterring these animals. An on-duty ACO might be able to make a home visit to give more detailed advice. Call Vector Control of Santa Clara County at 1-800-675-1155, weekdays only, or a private trapper. No traps or relocation services are available from Animal Services.
  • Los Altos, Los Altos Hills, Mountain View:
    Call Vector Control of Santa Clara County at 1-800-675-1155, weekdays only, or a private trapper. No traps or relocation services are available from Animal Services.
  • Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills:
    Call Vector Control of Santa Clara County at 1-800-675-1155, weekdays only, or a private trapper. No traps or relocation services available from Animal Services.

Rat Complaints 

For all communities in our jurisdiction, plus unincorporated Santa Clara County, Stanford University, Moffett Field, and San Antonio Hills:

  • Contact Vector Control of Santa Clara County for assistance. Call 1-800-675-1155, weekdays only.

Mountain Lion Complaints

For all communities in our jurisdiction, plus unincorporated Santa Clara County, Stanford University, Moffett Field, and San Antonio Hills:

  • To report sightings or observations, contact a Palo Alto naturalist 650-329-2382.
  • To request assistance in protecting pets, or evacuating residents or animals at risk, contact an ACO through Dispatch 650-329-2413.
  • To report an incident (an attack or pursuit of humans or pets), or for information on obtaining a "deprivation permit" which allows residents to pursue mountain lions, contact a California Department of Fish & Game warden at 408-429-9252.
  • In the event of an incident involving an immediate threat to human life--where the lion must be shot--contact the local police or sheriff.

For more information, please visit our Mountain Lions page.


Bee Complaints

For all communities in our jurisdiction, plus unincorporated Santa Clara County, Stanford University, Moffett Field, and San Antonio Hills:

  • Contact a bee-removal service; check the yellow pages under beekeepers and bee-removal service.

Pooper-scooper Law

Palo Alto: 
Regular, on-duty ACO's investigate complaints of violations 650-496-5971. ACO must see violation; citizen can file a complaint.
Los Altos, Los Altos Hills, Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills: 
No services available. (In Los Altos, police might assist with extreme cases 650-948-8223).


Animal Cruelty or Abuse Investigation

Palo Alto:
Regular, on-duty ACO's investigate complaints 650-496-5971. Aggravated cases of animal abuse after hours might be investigated by police (Dispatch: 650-329-2413).
Los Altos: 
Police officers investigate complaints. Phone: 650-948-8223.
Los Altos Hills: 
Santa Clara County Sheriff's Department investigates complaints. Phone: 408-299-3233.
Unincorporated Santa Clara County, Stanford University, Moffett Field, San Antonio Hills: 
Santa Clara County Sheriff's Department investigates complaints (408-299-3233).



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