People for the Ethical Treatment of Animals and San Diego-based Petco Animal Supplies Inc. announced an agreement on Tuesday. PETA will end its campaign against the national pet food and supply retailer and Petco will end the sale of large birds in its stores. Don Cowan, director of communications for Petco, said the two organizations have disagreed on this issue for a couple of years and the deal marks a truce. PETA agreed it will take down its "PetcoCruelty" Web site, remove all references to "Petno" on all sites affiliated with the organization and withdraw its support of the use...