### Instruction: Classify the following as types of birds or types of snakes: robin, cobra, rattlesnake, eagle, viper, raptor, bluejay, cottonmouth, copperhead, sparrow.
### Response: Robin, eagle, raptor, bluejay, and sparrow are all kinds of birds. Cobra, rattlesnake, viper, cottonmouth, and copperhead are several types of snakes.