Alameda Sheriffs Zoning and Fish and Game departments are investigating a Castro Valley property with 500 exotic birds in the backyard.ALAMEDA, Calif. (KGO) -- Hundreds of rare and exotic birds were found in a Castro Valley backyard Tuesday.The birds were found on Jensen Road, not far away from I-580. Watch the video in the player above for the full story.Click here for more stories on animals. Report a correction or typo