Warning: This thread contains graphic images (not gorey or bloody) of a roadrunner carrying a young bird around in it's beak that it's about to eat. Do not scroll down if seeing those kind of images will upset you.
Scroll down to see images.
I didn't know that roadrunners killed and ate other birds. I thought they just ate bugs, lizards, snails and sometimes snakes. I guess I was wrong. You can tell that the little bird is struggling in the first two images but by the third and fourth image it has died.
I didn't get to see the roadrunner actually eat the bird, but I found pics on another site that showed a roadrunner swallowing a small bird whole. That is most likely what happened to this bird.