When did springer spaniels become gun dogs?

It's not entirely accurate to say Springer Spaniels *became* gun dogs, as they were bred for that purpose from the very beginning.

Here's a breakdown:

* Early History: Springer Spaniels, along with other Spaniel breeds, were developed in England centuries ago.

* Original Purpose: Their primary purpose was to flush out game birds (like woodcock, pheasant, and partridge) for hunting with a gun. The name "springer" comes from the way they would "spring" or flush out the birds from dense cover.

* Working Dogs: For centuries, they were essential working dogs for hunters, valued for their agility, scenting ability, and retrieving skills.

So, rather than "becoming" gun dogs, Springer Spaniels were specifically bred to be highly effective hunting companions. Their history is deeply intertwined with the sport of shooting, and their instincts are still very much geared towards that purpose.