Note where activity repeats

Record the date, room and type of sign. A sound in a wall and damaged packaging are different pieces of information: keep those observations separate so you can describe them clearly.

Look at accessible conditions

Without touching droppings or moving devices, note visible openings around doors and pipes. Ask the building manager about planned repairs. Identification and entry points are useful topics to discuss.

Ask about the whole approach

Health Canada recommends combining rodent control with prevention and sanitation. Ask how entry points, precautions and follow-up would be addressed in your situation. Keep written instructions for people sharing the space.

Further reading: Public pest-control guidance (new tab)

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Mice in autumn: what to note
Visual reference for the topic; identification requires an assessment.