An indoor camera includes: an image capturing unit; a storage unit configured to store at least one detection area in association with stagnation times, the detection area that is a target area for detecting stagnation of a pet, and the stagnation times indicating the number of times when the pet enters the detection area and stagnates in the detection area; and a processor configured to detect a position of the pet and count the stagnation times of the pet in the detection area based on captured images. If determining, based on the captured images, that the pet stagnates in the detection area for a predetermined time period or longer, the processor increments and counts the stagnation times of the pet in the detection area and generates an action log including identification information of the detection area and information on the stagnation times.