Bullfrogs may be the most disturbing small animals after shrikes (also here-scroll down to "Laniidae").
Something I find annoying about this video: They don't show a bird actually getting caught. Granted, it could be because it's hard for an amphibian to catch an animal that can take off, but I'm mildly more inclined to think that they were avoiding upsetting people by showing a "cute" animal get eaten. (Never mind that there are people who think rats and mice are cute and that one of them was snatched on camera; you could barely see it.)
Nature doesn't care what's cute, guys. Only creatures with parenting instincts care what's cute.