For whatever it’s worth, that might depend upon the dimensions of your birdhouse or other target. Although the Close-up Lens’s product page doesn’t explicitly mention the distance, I asked the AI bot on the page a question and received this as part of the answer:
What is the focal length for Close-up Lens?
The Wyze Cam Close-up Lens is designed as a macro lens that adjusts your Wyze Cam’s focus to capture sharp, detailed close-up shots of small subjects like wildlife and pets. While the exact focal length in millimeters isn’t specified, this lens focuses within a close range of about 4 to 8 inches from the subject, perfect for capturing those tiny moments in breathtaking clarity.
That might help guide any future decisions if you’d rather not void your cameras’ warranties or just want to save yourself some time and not hassle with the innards, or it might be useful for others to know.