text: american cocker spaniel the american cocker spaniel is a breed of sporting dog . it is a spaniel type dog that is closely related to the english cocker spaniel ; the two breeds diverged during the 20th century due to differing breed standards in america and the uk . in the united states , the breed is usually called the cocker spaniel , while elsewhere in the world , it is called the american cocker spaniel in order to differentiate between it and its english cousin . the word cocker is commonly held to stem from their use to hunt woodcock in england , while spaniel is thought to be derived from the type 's origins in spain . the first spaniel in america came across with the mayflower in 1620 , but it was not until 1878 that the first cocker spaniel was registered with the american kennel club ( akc ) . a national breed club was set up three years later and the dog considered to be the father of the modern breed , ch . obo ii , was born around this time . by the 1920s the english and american varieties of cocker had become noticeably different and in 1946 the akc recognised the english type as a separate breed . it was not until 1970 that the kennel club in the uk recognised the american cocker spaniel as being separate from the english type . the american cocker was the most popular breed in the united states during the 1940s and 1950s and again during the 1980s , reigning for a total of 18 years . they have also won the best in show title at the westminster kennel club dog show on four occasions , and have been linked to the president of the united states on several occasions , with owners including richard nixon and harry s. truman . in 2013 , the cocker spaniel ranked 29th the american kennel club registration statistics of historical comparisons and notable trends . the breed is the smallest of the sporting dogs recognised by the akc , and its distinctly shaped head makes it immediately recognisable . in addition , there are some marked differences between it and its english relative . it is a happy breed with average working intelligence , although by being bred to a show standard it is no longer an ideal working dog . members of the breed suffer from a wide variety of health ailments including problems with their hearts , eyes and ears . history the word is thought to date from the late 12th century when it was used to name a type of dog imported into england from spain , with the span part of the word referring to the country of origin . records from the mid - 14th century show that selective breeding was already in place , with the breed being separated into two distinct types , called water spaniels and land spaniels . by 1801 , the smaller variety of land spaniel was called the cocker or cocking spaniel , so named for its use in flushing woodcock . according to historical records , the first spaniel was brought to north america aboard the mayflower which sailed from plymouth , england and landed in new england in 1620 . the first cocker spaniel recorded in america was a liver and white dog named captain , who was registered with the american kennel club in 1878 . in 1881 , the american cocker spaniel club was formed ; it would later become the american spaniel club ( asc ) and is now known as the oldest breed club for dogs in the united states . the task of the club was initially to create a standard to separate the cocker spaniel in america from other types of land spaniels , a task which would take over 20 years , only being completed in 1905 . the dog considered to be the father of the american cocker spaniel was sired by the dog considered to be the father of the english cocker spaniel . ch . obo was bred to ch . chloe ii , who was shipped to america while she was pregnant . once in the united states , she whelped a dog who became ch . obo ii . he differed greatly from the modern breed , being only 10 inches ( 25 cm ) tall and with a long body , but was considered to be an excellent dog of that era and became a popular sire . towards the end of the 19th century , the breed had become popular in america and canada due to their dual use as a family pet and a working dog . in the early 20th century the breeders on either side of the atlantic had created different breed standards for the cocker spaniel and the breed gradually diverged from one another , with the two becoming noticeably different by the 1920s . the american cockers by now had a smaller muzzle , their coats were softer and the dogs overall were lighter and smaller . the differences were so apparent that in 1935 , breeders founded the english cocker spaniel club and restricted breeding between the two types of spaniel . the two types of cocker spaniel in america were shown together as one breed , with the english type as a variety of the main breed , until 1946 when the american kennel club recognised the english cocker spaniel as a separate breed . return to the uk initially in the united kingdom there were a few american cockers that had accompanied service personnel to american bases in the 1950s and 1960s . in addition , several came over with embassy staff and business people returning home . the first uk kennel club registered american cocker spaniel was , born 17 january 1956 and bred by herbert l. steinberg . two judges confirmed that the dog was an american cocker and not an english cocker before the kennel club permitted the dog to be shown . in the 1960s they were shown as a rare breed , which meant that they did not have a show class of their own and could only be shown in variety classes . this included , who was the first american cocker spaniel to be shown at crufts in 1960 in a class entitled " any variety not classified at this show " . in 1968 , the kc agreed to have the breed shown in the category " any variety gundog other than cocker " and stated that the american cocker was not a variety of " spaniel ( cocker ) " . there were around 100 registrations between 1966 and 1968 . in 1970 the breed was given a separate register in the kennel club breed supplement , as it was previously included in " any other variety " . registration numbers increased to 309 by 1970 following this full recognition . notable american cockers and popularity american cocker spaniels have won best in show at the westminster dog show on four occasions , with the first win in 1921 by ch . seductive . ch . my own brucie won the title twice in 1940 and 1941 , and became known as the most photographed dog in the world . brucie 's win in 1940 coincided with the american cocker spaniel becoming the most popular breed of dog in the united states , and they would remain the most popular until 1952 . the most recent victory was in 1954 with the victory going to ch . 's rise and shine . the popularity of the american cocker increased once again in the 1980s with it becoming the most popular breed again from 1984 until 1990 . in more recent years the popularity of the breed has decreased , with it ranked 15th most popular by the american kennel club in 2005 . american cocker spaniels have had several links to the united states presidency . in 1952 , an american cocker spaniel became a household name when united states senator richard nixon made his checkers speech on 23 september . a parti - colored american cocker spaniel named dot was one of several dogs owned by rutherford b. hayes ; and a buff colored dog named feller caused a scandal for harry s. truman when the dog was received as an unwanted gift with the president subsequently giving it away to a white house physician . more recently , a cocker named zeke lived with bill clinton while he was arkansas governor . appearance the american cocker spaniel is the smallest dog recognised by the american kennel club as a sporting dog , being on average between 13 . 5 and 15 . 5 inches ( 34 and 39 cm ) high at the withers . it is a dog of normal proportions , with medium long silky fur on the body and ears , hanging down on the legs and belly ( known as feathering ) . the head has an upturned nose and the ears hang down . the breed standard states that size over 15 . 5 inches ( 39 cm ) inches for males and 14 . 5 inches ( 37 cm ) for females is a disqualification at conformation shows . american cocker spaniels weigh around 24 to 30 pounds ( 11 to 14 kg ) on average , with females of the breed usually weighing slightly less than the males . the head of an american cocker spaniel makes the breed immediately recognizable , with the rounded dome of the skull , well - pronounced stop , and a square shaped lip . the drop ears are long , low set , with long silky fur , and the eyes are dark , large , and rounded . the nose can be black or brown depending on the colour of the breed . the coat of the breed come in a variety of shades with the colours being separated into three main groups : black / black and tan , any solid colour other than black ( ascob ) , and parti - colour . the black variety is either all black , or with tan points on the dog 's head , the feet and the tail in a pattern called black and tan . the group known as ascob includes all other solid colours from light cream through to dark red , although some lighter colouring is allowed on the feathering according to standards . parti - coloured dogs are white with patches of another colour such as black or brown , and includes any roan coloured dogs . in addition , american cockers coats can come in a pattern known as merle , which is not recognised by the american kennel club . american cockers have rounder eyes , a domed skull , shorter muzzle and more clearly pronounced eyebrows than the english cockers , whose head is more setter - like . in colours , the roan colours are rarer in the american variety than in the english but the shade of buff which is common in the american is not seen in the english breed at all , although there are english cocker spaniels which are considered to be a shade of red . the english breed is also slightly larger , being between 14 . 5 – 15 . 5 inches ( 37 – 39 cm ) in height . american cocker spaniel temperament known as the " merry cocker " , the american cocker spaniel breed standard defines the ideal dog of the breed as being " equable in temperament with no suggestion of timidity . " the breed ranks 20th in stanley coren 's the intelligence of dogs , a rating that indicates good " working or obedience intelligence " , or trainability . iq tests run on a variety of breeds in the 1950s and 1960s showed that the american cocker performed the best when tested on its ability to show restraint and delayed response to a trigger , a trait which was put down to the breed 's bred - in ability when hunting to freeze upon finding a bird before flushing it out on command . however , they proved to be the worst breed tested when it came to manipulating objects with their paws , for instance uncovering a dish of food or pulling on a string . with a good level of socialisation at an early age , an american cocker can get along with people , children , other dogs and other pets . this breed seems to have a perpetually wagging tail and prefers to be around people ; it is not best suited to the backyard alone . cockers can be easily stressed by loud noises and by rough treatment or handling . members of the breed were originally used as hunting dogs , but increased in popularity as a show dog . it was bred more and more in conformation with the breed standard , resulting in certain attributes , such as a long coat , which no longer make it an ideal working dog . health american cocker spaniels in uk and usa / canada surveys had a median lifespan of about 10 to 11 years , which is on the low end of the typical range for purebred dogs , and one to two years less than other breeds of their size . the larger english cocker spaniel typically lives about a year longer than the american cocker spaniel . in a 2004 uk kennel club survey , the most common causes of death were cancer ( 23 % ) , old age ( 20 % ) , cardiac ( 8 % ) , and immune - mediated ( 8 % ) . in a 2003 usa / canada health survey with a smaller sample size , the leading causes of death were cancer , hepatic disease , and immune - mediated . american cockers previously high popularity resulted in the breed frequently being bred by backyard breeders or in puppy mills . this indiscriminate breeding has increased the proliferation of breed related health issues in certain bloodlines . american cocker spaniels are susceptible to a variety of illnesses , particularly infections affecting their ears and , in some cases , their eyes . although the number or percent of afflicted dogs is not known , progressive retinal atrophy ( pra ) , glaucoma , and cataracts have been identified in some members of the breed . the american spaniel club recommends annual eye exams by a veterinary ophthalmologist for all dogs that are to be used for breeding . autoimmune problems in cockers have also been identified in an unknown number or percent of the breed , including autoimmune hemolytic anemia ( ) . ear inflammations are common in drop - eared breeds of dog , including the american cocker , and luxating and hip dysplasia have been identified in some members of the breed . heart conditions such as dilated cardiomyopathy , where the heart becomes weakened and enlarged , and sick sinus syndrome , which is a type of abnormal heart beating which causes low blood pressure , have been identified in the breed . deficiency is a condition caused by a recessive gene in the breed which prevents the metabolism of glucose into energy , causing the dog to have extremely low energy and be unable to exercise . the gene which causes this appears in around 10 percent of the population , but dna testing can prevent two carrier dogs from breeding and thus creating puppies with this condition . american cockers are also prone to canine epilepsy and the related condition known as rage syndrome . the latter is a form of epilepsy which can cause a normally placid dog to engage in sudden and unprovoked violent attacks . initial research shows that both conditions appear to be inheritable . in popular culture the film lady and the tramp features lady who is an american cocker spaniel .