Hamsters making "popping" sounds are usually a normal behavior and may have the following reasons:
1. Grunting: When hamsters are active, especially when they are eating, they may make a sound similar to "grunting". This is because their cheek pouches are filled with food, which creates sounds when they chew or move the food.
2. Lively and happy: When hamsters feel happy and excited, they may make some pleasant sounds, including "puff" sounds. This is one of the ways they express their happiness.
3. Social noise: Hamsters are social animals and they can communicate with other hamsters through sound. The "poof" sound may be a social signal between hamsters, such as friendship, warning, or courtship.
4. Purring: Some hamsters purr when they are relaxing or sleeping. This is usually a sign of relaxation, indicating that the hamster feels safe and comfortable.
In general, hamsters making "popping" noises is a normal behavior and usually there is no need to worry too much. However, if it is accompanied by other abnormal behaviors or symptoms, such as loss of appetite, difficulty breathing, movement disorders, etc., it is recommended to consult a veterinarian for further evaluation and advice.
