Greater Roadrunners are well-known to many as represented by the Looney Tunes version, a large purple-crested bird, whose call is, “Meep! Meep!” The real bird is even more amazing than the quick-witted cartoon version. Roadrunners earned their name from their ability to move quickly on land, with speeds up to 15 MPH.
Roadrunners eat almost anything they can catch: lizards and snakes, small rodents, scorpions and tarantulas, and large insects. They’ll even leap up to catch hummingbirds at nectar feeders. – The Young Birder’s Guide to Birds of Eastern North America.