The physical differences between these two are well known. The behavioural ones are more useful in practice, because behaviour is what you are actually observing from below a ceiling.
Habit versus opportunism
Rats are strongly habitual. They establish runs and use them repeatedly, keep to edges and walls, and are cautious about anything new in the environment — a well-documented wariness that makes them slow to approach unfamiliar objects. The consequence in a roof space is a defined, repeated pattern: the same routes, the same corners, droppings accumulating along them.
Squirrels are far less rigid. They cross open space readily, take different routes on different days, and are considerably bolder about unfamiliar objects. The consequence is scattered evidence and a less predictable pattern of movement.
How each uses the space
- Rats live there. A roof space is territory: marked, run, nested in and occupied continuously
- Squirrels commute. The roof is a rest and store site; they leave at dawn and return in the afternoon
- Rats keep to edges. Along joists, against walls, behind boxing
- Squirrels go where they like. Across the middle, over stored items, wherever is direct
- Rats are quiet and continuous. Low-level activity over hours
- Squirrels are loud and intermittent. Bursts, then complete silence
The tell that needs no equipment. Rat activity sounds like something busy and ongoing. Squirrel activity sounds like something arriving, doing one thing, and stopping. That difference is audible through a ceiling.
Response to disturbance
Bang on the ceiling and a squirrel will move, briefly, and go back to what it was doing within minutes. Rats will go quiet for considerably longer and may shift their routes, which is one reason a household that keeps disturbing a roof space ends up with a less readable pattern rather than a quieter one.
Neither is a control method. Both animals value the site far more than they mind the noise, and habituation is quick.
Numbers
A roof space with squirrels usually has one or a small number. A roof space with an established rat population can have considerably more, because rats breed rapidly and the population grows in place. That difference shows in the evidence: heavy, widespread droppings along defined runs suggest numbers, where scattered droppings around a couple of areas suggest one or two animals.
Why behaviour matters for the work
Because it determines where the evidence is and where the work happens. A habitual animal that runs the same route can be dealt with along that route. An opportunistic animal that comes and goes through a single roof-level opening is dealt with at the opening. That is the practical difference between the two jobs.
Questions
Will banging on the ceiling move them out?
Briefly at best, and it makes the pattern harder to read. Neither animal gives up a good site over noise.
Which is more likely to be several animals?
Rats, because an established population grows in place. Squirrels are usually one or a few.
Do squirrels use the same route every day?
Loosely, and far less rigidly than rats. That is part of why their evidence is scattered rather than linear.
Squirrel Control Soham
Squirrel control in Soham is £280 fixed cost. Proofing work, where it is needed afterwards, is £180. Call 01502 630 122 and tell us what you have heard or seen.
For squirrel control in Soham, call 01502 630 122, or read the Soham squirrel control page.