Dogs can see orange bumpers in the sky sometimes better than all white. Orange does contrast to the ground less than white or black. I wouldn't use ornage all the time but, for true marking drills, orange will give you answers.Bob Gutermuth said:The problem I have with using any 'nonvisible' color is that it encourages a youngster to use its nose. When we teach a young dog to mark it should be with its eyes. Learning to use the nose to find the mailbox after its eyes get it to the postoffice is the name of the game.
High percentage, Mary visits the site so hopefully she'll chime in. Mary likes light (mowed) cover and orange bumpers for puppy marks, regardless of distance. We all start our puppies on short and visable marks. I mean at 10 yards you could throw an old shoe and the puppy would confidently bring it back. The puppy quickly learns the concept; run out and pick it up and bring it back. Orange bumpers introduces the pup to the concept of find/hunt for the mark using his eyes. The pup begins to understand that to succeed takes a little work. As the pup moves into more dificult marks in heavier cover with white bumpers they've already learned how to hunt and don't need the help of the bird boy nor do they run around aimlessly until they happen to see it. The pups trained on white bumpers learn how to establish a hunt pattern in heavy cover. The pups trained on orange bumpers prior to heavy cover already have a hunt pattern imprinted. Consequently success earlier in the game, hopefully.I'll bet that the Pros that the original poster was refering to are Mary and Bill Hillman. I'll also bet their four High Point Derby dogs were marked on a percentage of orange bumpers during drills.