Do they have WiFi?
As long as there is Wifi and a power source, this should work.
Limited-time deal: WYZE Cam OG 1080p HD Wi-Fi Security Camera - Indoor/Outdoor, Color Night Vision, Spotlight, 2-Way Audio, Cloud & Local storage- Ideal for Home Security, Baby, Pet Monitoring - Alexa & Google Assistant
You'd just need a micro SD card if you don't want to pay for their service.
Find a spot to tuck it away and gives good field of view.
I use WYZE. The free monitor means you need to be able to watch when it happens but it's cheap to have monitor subscription.