[Excerpts from online regulations]
Mammal Hunting Regulations Booklet
p. 15, 311 Methods Authorized for Taking Resident Small Game part h
“Electronic or mechanically-operated calling or sound-reproducing devices are prohibited when attempting to take resident game birds.”

p. 29, 475 Methods of Take for Nongame Birds and Mammals part b
“Recorded or electrically amplified bird or mammal calls or sounds or recorded or electrically amplified imitations of bird or mammal calls or sounds may not be used to take any nongame bird or mammal except coyotes, bobcats, American crows and starlings.”

California Fish and Game Code Section 3000-3012, part 3012
“It is unlawful to use any recorded or electrically amplified bird or mammal calls or sounds, or recorded or electrically amplified imitations of bird or mammal calls or sounds, to assist in taking any bird or mammal except nongame birds and nongame mammals as permitted by regulations of the commission.”

2006 Upland Game Bird Hunting Regulations section 507 part C
“Prohibition on Electronic or Mechanically-operated devices; Electronic or mechanically-operated calling or sound-reproducing devices are prohibited when attempting to take migratory game birds. It is unlawful to use electronic or mechanically-operated spinning blade devices or spinning wing decoys when attempting to take waterfowl between the start of waterfowl season and November 30. For the purpose of this regulation, wind-powered spinning blade devices and kites are not prohibited.”

After a discussion with an officer, FOXPRO was informed that the rules and regulations of the use of electronic callers and decoys have not changed since last year.  You can only use them for coyotes, bobcat, and crow.

[Overview]
California prohibits use of electronic wildlife callers for all game birds and game mammals except for coyotes, bobcats, American crows and starlings. The only located prohibited use for electronic or mechanical decoys relates to upland game bird hunting.

Full List for Electronic Call & Decoy Usage: List of game animals that may be hunted with the use of an electronic call: coyote, bobcat,  crow  List of game animals that may be hunted with the use of an electronic decoy: coyote, bobcat, crow