desertrat
0_0
Wilde beast or Badger.

Wildebeast maybe, or warthog. Badgers have a low growl. My first thought was chupacabra.
I considered that too until I realized the wind wasn't blowing. Well, through my quest to figure out this sound I found the names of other birds around my house at least.
Most birds don't sing at night. Frogs will go night and day and so will cicadas.