American Cocker Spaniel has been developed by the English Cocker Spaniel which is known as his cousin. Obo II started the history of the American Cocker Spaniel and hence continues with the other breed like the Idahurst belle II, Princess Marie, Torohill Trader, Windsweep Ladysman, My own Brucie, and the Red Brucie. They have attempting with breed like the Holmeric of Brookville, Cob’s Candidate, and Stockdale Town Discuss. After in the latest many years with the contribution of the fashionable breed like Arttu Sky Jack, Lurola’s Royal Lancer, Dreamrdige Domino, Cottonwood Congressman, Terje Tunderbolt, Glen Arden Real McCoy, Glenmurrary’s Strong Black, Juban Georgia Jazz, Majestic Major Avon-dale, Rendition Triple Play, Emprie’s Brooklyn Dodger, West-glen Black Gamon, Palm Hills Krugerand, Baliwick Blackmale and the, Silver pine California Dream had developed the new breed which is known as American Cocker Spaniel today. These breed was been separated from the English cocker and developed by observing the difference in the again line, pinnacle, course of the hair and the again line in time of the mid of the last century.