PBS
Nh Pbs: Nature Works: American Pika
Learn more about the American Pika through this informative resource. This site features information on characteristics, food, habitat, reproduction and more.
Smithsonian Institution
National Museum of Natural History: American Mammals: American Pika
American Pikas scent-mark with their cheek glands, and also communicate with both long and short vocalizations. Short calls are uttered as alarms and to announce that they are departing or returning from foraging, and males perform a...