This video from Florida in the USA says about itself:
15 December 2016
A little Pied Billed Grebe catches a big Florida Bullfrog and with a lot of effort manages to swallow it whole with a chaser of water. All in a day’s work.
The Bullfrog is the largest native frog in North America reaching a maximum of 8 inches in body length. The Grebe is one of the smallest waterfowl reaching a length of 9 inches. I don’t think this one will need to eat for quite awhile!