Sounds of a hawk flying around house

Hi all, we recently moved into a new rental house, and I keep hearing what sounds like what a hawk flying through a canyon would sound like. It comes and goes, and I hear it mostly at night when I'm trying to sleep. I've been ill a lot lately and one night I was trying to sleep/rest on the couch and it kept sounding like it was passing over my head, like I'd hear the blinds on the sliding glass door in the other room rattle, then a few seconds later the hawk sound over my head, and it happened over and over like it was circling through the house. Maybe it's just the A/C vent or something, not sure. But the more I hear it the better I seem to be feeling. This could be a coincidence, since the last house was making us all sick, we think there was black mold growing in the bathroom walls in that old house, but this house seems better so maybe I'm just getting better since we no longer live in the older house. The sound reminds me of hawk, could that be a healing Spirit?