The ears are less pendulous. Field-bred dogs are wiry and have more of a feral look than those bred for showing. The tail of the field-bred dog may be docked a few inches in comparison to the show dog. The major differences between the Welsh Springer and the English Springer are that the Welsh have more limited colors and tend to be slightly smaller. The English physician John Caius described the spaniel in his book the Treatise of Englishe Dogs published in 1576. His book was the first work to describe the various British breeds by function. By 1801, Sydenham Edwards explained in the Cynographia Britannica that the land spaniel should be split into two kinds, the Springing, Hawking Spaniel, or Starter; and the Cocking or Cocker Spaniel.At this point, both cocker spaniels and springer spaniels were born in the same litters.