Loaʻa i nā ʻīlio cocker spaniel ʻelua ʻano ʻīlio ʻano spaniel: ʻAmelika a me English Cocker Spaniels.
Ua hānai mua ʻia kēia ʻano ma ke ʻano he ʻīlio hahai holoholona ma United Kingdom. Ma ʻAmelika Hui Pū ʻIa, ua hānai ʻia i kahi ʻano ʻokoʻa. Ua hānai ʻia nā hoʻololi kino ʻē aʻe i ka conformation a me ke ʻano ma ʻAmelika Hui Pū ʻIa i ka hoʻomaka ʻana o ke kenekulia 20, akā ua like nā ʻano ʻelua i nā pono like, nā waihoʻoluʻu ʻaʻahu, a me nā pilikia olakino, me nā mea ʻokoʻa.