Dog and cat owners know their love of animals can also lead to giant mounds of stray pet fur. When you’re brushing your pet, don’t toss the pet hair into the trash. Instead, simply place it outside, where birds may pick up nest-building materials (like pine needles, small sticks or twigs), and let them use it to feather their nest. Yes, birds may avoid the actual cats and dogs, but they love their soft fur. But a word of caution: If your pet has been shampooed with a flea and tick product, don’t share it with our feathered friends.