Yes they do. Just like other dogs need it. Grooming is very important for every dog's wellness. Here are some details on this breed's grooming,
http://dogtime.com/dog-breeds/irish-setter/coat-color-and-grooming
They have fur. Like most dogs who shed their fur terriers don't. When they lose their hair it has to be pulled off like our hair. They are dogs that people get if they are allergic to dogs.
Patterdale terriers, unfortunately, are not hypo-allergenic. However, many terriers are, including Scottish terriers, Welsh Terriers, Irish terriers, and Border Terriers.
That really depends on your location. Any dog grooming center that is remotely competent should be able to groom Yorkshire Terriers. If there happens to be one specifically for Yorkshire Terriers in your neighbourhood, you'd be quite lucky.
Silky Terriers are considered to have a long, silky coat that requires regular grooming to keep it looking neat and healthy.
Yes Irish Terriers are used for bird hunting! We have used AKC Irish Terriers for bird hunting since 1995 and they are excellent hunters and retrievers!
Like a house on fire.
Yes and if you want to make grooming even easier you can strip your dog.
Terriers
foxhound, beagle, Irish setter, or terriers
Norfolk terriers are not hypoallergenic, meaning they do shed and produce dander that can trigger allergies in sensitive individuals. Regular grooming and cleaning can help minimize the amount of allergens in the environment.
The Irish included in a dogs breed refers to the origin where that breed of dog was first bred. (i.e. Irish Wolfhound, Irish Setter, originated in Ireland).
their size, ear shape, and length of coat