Identify the camera system by the noise

It goes off between 120 to 234 times per day, only on weekends. The times it sounds are completely random. I have 15 weeks of data to support what I believe is not a set program but, manually activated.
I also thought it is the alarm function. The alarm used to be a siren. Do some systems allow the siren to be charged?
 
Okay, so this is a problem with the camera then? I didn't know if this was a game, or what?

What is the brand and model number of the camera?

What alarm triggers are used? (Motion Detection, etc.)

Please post screen captures of the triggers settings and Alarm Settings page(s).
 
It sees to be a game. Its not my camera. Its my neighbors camera. It points directly into my back yard. The video you see is from my camera. My camera is recording the audio from their camera.
We have ruled out motion, wind, nature, scheduled alerts (alarm) due to analyzing the data over 14 weekends. The alarm only goes off on weekends, usually between 6am to 12pm. There are exceptions, but only on weekends. You can walk out into the yard, be out there for a couple to several minutes before the alarm goes off. If you wave to the camera, the alarm goes off every 30 seconds, sometimes for a few hours and as many as 243 times in a 10 hour period.
I dont know the make or model of their system. I was hoping someone e familiar with these systems could give me some tips or point me in the right direction to identifying it.