The daylight test is the most reliable thing in this subject, and it is not infallible. Knowing where it bends stops a genuine exception being read as proof that the whole approach is wrong.
Exception one: the disturbed animal
A squirrel that is startled at night — by a slamming door, a storm, work in the house, a fire alarm — will move. That produces a short burst of heavy noise at an unlikely hour, and then nothing. The tell is that it is isolated: one incident, not a pattern.
Exception two: the trapped animal
An animal that cannot get out abandons its normal rhythm entirely. Activity becomes constant, urgent and continuous through the night, and there is usually heavy gnawing with it. This matters most where something has recently been sealed, and it needs reporting straight away.
Exception three: young in the nest
A female with dependent young returns to the nest through the day and moves within it at intervals that do not follow the adult pattern. Young themselves make noise when they are hungry rather than when the sun is up. So spring activity can look far less orderly than the textbook suggests.
Exception four: long summer days
In midsummer first light is very early and dusk very late. The two peaks are therefore further apart and the whole active period is longer, which can read as all-day activity. It is the same rhythm stretched, not a different one.
Exception five: it was never a squirrel
The most common resolution of an apparent exception. Light continuous noise in the small hours with heavy noise in the morning is two species, not one unusual animal. That is an ordinary finding and it is better identified early than argued away.
How to use an exception. One odd incident is an incident. A sustained pattern that does not fit is information — and the explanation is usually a second species, young, or something trapped, all three of which change what happens next.
What does not bend
- Weight. A rat does not become heavy. If it thumps, it is not a rodent
- Entry level. Squirrels come in at roof level. An entry at ground level with a sound roof edge is not a squirrel story
- The rolling noise. Cached food being moved is a squirrel and nothing else
- Coarse gnawing. The mark sizes differ and the sound differs with them
The practical position
Record what you actually hear, including the parts that do not fit, and report it that way. An accurate account of an untidy pattern is considerably more useful than a tidy account that has been edited to match an expectation.
Questions
One loud thump at 3am. Should I worry?
On its own, no — a disturbed animal moves. A sustained overnight pattern is a different matter.
It has been constant since we blocked the hole. What now?
Say so immediately. Constant, urgent activity after a seal is the signature of a trapped animal.
Does the pattern change in summer?
The peaks move further apart because the days are longer. The rhythm is the same.
Squirrel Control Diss
Squirrel control in Diss 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 Diss, call 01502 630 122, or read the Diss squirrel control page.