In the Phoenix, Ariz. neighborhood of Maryvale, Chihuahuas are reportedly traveling in groups of 10-15, chasing children, bicycles, and cars. Last year the Maricopa County Animal Care and Control received 6,000 calls about Chihuahuas from the Maryvale neighborhood alone. Animal Control has been urging residents to call if they see the strays and has offered to neuter any Chihuahua for free.
Hearing about the Chihuahuas make me particularly sad because of how they were objectified as accessories in the early 2000's (influenced perhaps unintentionally by Paris Hilton and films like Legally Blonde). I hope that the Maricopa County Animal Care and Control's neuter efforts are successful, but responsible pet ownership is ultimately the root cause of the overpopulation problem. We must get the word out that animals are not disposable!