Note the bright yellow eyes and gray facial disk.
While the breast is gray, the belly is white (with light brown barring).
The back is darker gray than the wings.
These birds stand out at a distance, so much so that they seem less in tune with their surroundings than the female and immature forms, which take the color of marsh and meadow grasses. Male harriers seem to belong on the tundra, like snowy owls or gyrfalcons.