What is a fowl dog?

There is no recognized breed of dog called a "fowl dog". It is possible this is a regional or colloquial term for a specific breed or type of dog, or even a general term for a dog used in hunting fowl.

To clarify, you could be referring to:

* A breed of dog specifically bred for hunting fowl: Some popular breeds used for hunting fowl include:

* Retrievers: Labrador Retrievers, Golden Retrievers, Chesapeake Bay Retrievers

* Spaniels: English Springer Spaniels, Cocker Spaniels, Irish Water Spaniels

* Pointers: German Shorthaired Pointers, English Pointers, Brittany Spaniels

* Flushers: American Foxhounds, Beagle

* Any dog used for hunting fowl: In this case, it would refer to a general category, not a specific breed.

To give a more accurate answer, please tell me:

* Where did you hear this term? (Specific location, online, book, etc.)

* What context was it used in? (Hunting, breed description, etc.)

Once I have more information, I can help you understand what a "fowl dog" might mean in your context.