He says the thieves took three Patagonian conures worth $950 each; a caique parrot worth $1,400; a rose-breasted cockatoo worth $2,200; and a yellow nape Amazon parrot worth $2,500.
Schreiner believes the theft at his shop in the city of Menifee is tied to other recent bird heists in the region. Thefts have occurred at a bird farm in Redlands and an exotic bird store in Cypress in the past few weeks.
GALLERY | Store owner: Thieves swipe birds worth thousands of dollars
The Riverside County Sheriff's Department says it's not clear if the crimes are linked.