Observations by wali43

Sorry for the blurriness, all images are heavily zoomed-in still frames from a video since the duck would not stop running until she finished swallowing the frog - presumably to keep both me and the other ducks from stealing her prey.

Frog caught by mallard-based domestic ducks (Anas platyrhynchos domesticus) while the ducks were foraging.

I'm not sure if they found it on the ground or elevated, but it must have been within ~1 meter of the ground for the ducks to have reached it. Since we're heading into winter I'm assuming they found the frog in a hibernation spot under leaves or dirt.