I had a fox do that to my duck. The fox had to cross 1/4 acre of mowed pasture to get to her which is unusual for a fox to come out in the open like that...well I thought so anyway...and the fox came right up to my front step in broad daylight and nabbed her. I was running on its heels and it dropped my duck but she was dead already.I recently lost a Banty hen to a coyote during the day. Grabbed her at a run, never slowed down. She never saw it coming. I only saw it as it disappeared into the woods. When they have young to feed, they get brave