Squirrels make a variety of sounds, ranging from chattering and barking to chirping, whistling, purring, scratching, rustling, and growling. Chattering is a rapid, repetitive noise that is a common vocalization among many species of squirrels. It is a versatile noise used in various contexts, from expressing agitation to warning others of potential threats. Scratching and rustling are common vocalizations associated with their daily activities of nest building and foraging. These sounds, while not vocalizations, are an integral part of their soundscape, providing insight into their behavior and lifestyle. Squirrels also use squeaks during social interactions, such as greeting or play, adding a social dimension to this versatile sound. Baby squirrels use squeaks to communicate with their mothers, which serve as a form of bonding, reinforcing the strong connection between mother and offspring.

Growling is another sound that squirrels make. These low, guttural sounds are often associated with aggression or territoriality, providing insight into the more assertive side of squirrel behavior. They often emit growls when they’re defending their territory or expressing aggression.

Squirrels can vocalize at any time, but they are generally more active and vocal during the early morning and late afternoon.