Wyze Cam Outdoor - Chirping Sound

When I monitor the sound on the the Wyze Cam Outdoor (mounted under the eve by the backdoor) I notice a regular chirping noise every two seconds. (I have a Motorola android phone). At first, I thought it was picking up the noise of insects, but I have ruled that out. It happens every two seconds like clockwork. I tried deleting the device and then adding it back. At first, it seemed to work, but now it is making the same regular noise. Any suggestions? The firmware is up to date. The other outdoor cam mounted under the eve on the front porch does not make this sound.