The answer to 'bee scratching sounds' is that the sounds are likely caused by a bee or wasp nest inside the walls or attic of your home. These pests may be scratching or buzzing as they build their nest and colony. Common symptoms include hearing intermittent scratching or buzzing noises, especially at night or during the day when the insects are most active.
If you hear these sounds, it's best to call a professional pest control technician to inspect and safely remove the nest. Attempting to DIY remove a bee or wasp nest can be extremely dangerous, as the insects may become aggressive and sting. A professional will have the proper training and equipment to safely locate and eliminate the nest without putting your family at risk.