Eric Zetterholm is an amateur photographer, but you'd never know it by this photo. It's a male Northern Harrier.
They have an owl-like face that allows them to hear mice and voles in the meadows below them. These slim hawks holds their wings in a V shape in air. Their call is a high-pitched "kek, kek." You can hear it for yourself at this link to the Cornell Lab of Ornithology: https://www.allaboutbirds.org/guide/Northern_Harrier/sounds
Here is a great photo of a juvenile Northern Harrier, taken by Robert Scarola. Thanks to Eric and Robert for allowing me to share their photos with you here.