The UFO connection to white owls is new to me too. Found an article tonight when I searched "white owl" which is how I found this site. I'm so glad I did. (To the administrator(s), thank you for approving me to join!)
Lisa - ... just an owl in the road - could be, but I find them to be quite special and more. Years ago, during the worst time in my life, we had a white owl perch nightly in our Birch tree shortly after I moved here. He'd call out upon arrival & seek me out until I'd come out and talk to him. He'd fly in at dusk, hunting the fields across the street, and leave during the night. He was beautiful, so silent when he'd take off and land, you could make out the sound of the rush of air but no noise when he'd flap his wings gently and soar. We named his Screech. He returned the next year. The following year a smaller white owl came, after a week or two of talking with him he brought a mate. The pair returned for a couple years, but we haven't seen any this year. Years prior, there was a pair of owls perch in my neighbor's tree year after year when I lived in the city. The neighbors said this was something new. I didn't have any trees tall and open enough for them to perch. A year after I moved there, I attended a group meeting with a friend where I learned my spirit animal is a white owl. The night I attended they were doing an exercise where everyone lay on the floor, relax and try to get in touch with, or discover, your totem or spirit animal. Look up the meaning and symbolism of the white owl, if you haven't already.