These flies are known as cluster flies a name that describes their habit of clustering in large numbers inside attics.
Attic dead animal flies.
A squirrel bird or racoon that dies in the chimney or attic can be fodder for flies.
Second the animal often dies burrowed under the insulation.
Blow flies and flesh flies are very common flies associated with dead animals.
Sometimes it is impractical to find and remove the dead animalï especially when it is inside the wall.
About 12 18 should be fine.
If there are a large number of blowflies inside it most likely is a sign of a dead rodent or bird somewhere in the structure.
Assuming garbage management is not a problem the next best guess is an animal carcass somewhere in your wall voids attic or some other unfrequented or inaccessible part of your home.
If it s inaccessible by a skinny human such as me i sniff out the exact area and cut a hole in the ceiling and remove the animal that way.
Many are the times when dead animals will attract insects such as flies or even black ants feeding on its carcass.
The bigger the animal the more flies will be produced although it is amazing how many flies can develop in even a small animal like a mouse.
As much as flies may be misleading due to their capability to fly away they always give an idea as to where to find the carcass simply because they circle the place.
The animal may have died at the very edge of the attic or worse in a cathedral ceiling or some other spot.
If a female blow fly detects a dead animal in your attic for example she will find some way to get into the attic and get to the carcass.
When a rat squirrel bird or other animal dies it doesn t take long for a blow fly or house fly to zero in on the carcass where she proceeds to lay eggs.
Life cycle of blow and flesh flies.
The only way to solve the problem is to crawl through the attic and find the carcass and remove it.
Blow flies have great noses for death and can sniff out an animal within 20 minutes of its death.
This is by far the easiest remedy as there are no harsh chemicals no noises and no electricity involved.
It is likely buried under insulation or down some nook or cranny.
Sticky paper is pretty much the classic way to catch and kill flies of any kind.
She immediately lays up to 180 eggs on the carcass and the larvae hatch within hours.
The appearance of the flies or maggots in the house typically indicates that an animal i e.
If a dead animal odor is present the odor may help narrow the search area.
Rodent bird etc has died within the walls or in the attic.
The problem is that it can be very hard to find.
This is pretty straightforward there s a dead animal in the attic causing a huge odor in the house.
Cluster flies do not reproduce indoors and home owners bothered by these pests do not need to fear the flies are hatching from a dead animal or other unpleasant material within the attic or walls.
