I use ‘blink’ cameras.
They are really meant as security cameras, but they work well for wildlife too, and give an amazing view in to the behaviour of hedgehogs and other wildlife, every night of the year.
The one I ordered comes with three cameras and you need a little ‘blink hub device’ to plug in to a wall socket in the house, near your wifi router. You also need to download the ‘blink” App on your device.
As long as you position the cameras not too far from the side of the house with the router, you get notified on your App every time the cameras are triggered.
On the App you can control how long the cameras record for at each incident, and also if you wish, you can watch the activities ‘live’ as they are happening.
The cameras only take AA ‘Lithium’ batteries..don’t make the mistake we did, of putting in ordinary AA batteries.
Another useful feature in the App, is that you can disarm the cameras during the day if you want, because if they are positioned near a bird feeder, your device will be pinging literally all day!..it also uses up the camera battery power too fast!
