In a medium bowl, mash avocados. Stir in lime juice, salt, black pepper, and garlic powder.
Spread each bagel evenly with creamy cheese, then top with the mashed avocado mixed.
Shred the smoked salmon with your hands and add it on top of the avocado. Finish with sliced red onion, capers and a sprinkle of fresh parsley.
Serve immediately.