According to the Maricopa County Animal Care and Control, the little ones have been breeding indiscriminately with each other and now have been overrunning residential areas.
"Part of it is these animals aren't spayed or neutered, so they're out looking for a mate and having babies, which also contributes to the problem," stated a representative from Animal Control.
Authorities believe the high number of foreclosures and undocumented workers forced to leave Arizona when the economy crashed, has caused the overpopulation of the small breed.
Sadly, chihuahuas are the most popular breed at the Arizona shelters.
Chihuahuas are the smallest breed of dogs, and named for the state of Chihuahua in Mexico, although some experts argue that the breed originated in China and were brought over by Spanish traders.
The adorable little breed, with varied temperaments and intense loyalties toward their humans, were made popular by Paris Hilton and her famous "chi" named Tinkerbell.
Residents are urged to safely corral the little dogs if at all possible, and then call Animal Control.
While chihuahuas may not be a popular breed in Maricopa County, many city dwellers in New York City find the adorable little ones perfect for apartment living.
As Bob Barker has been repeating for years and years, please spay and neuter your pets.
Interested in rescuing and adopting a chihuahua? Click here for more information. The featured chihuahua is named Artie; he is available for adoption. Please refer to ID# 14-02-16-00249.
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