Why house flies act erratically in autumn ?

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Offline junki

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Why house flies act erratically in autumn ?
« on: 26/09/2009 21:27:22 »
Not in the proper agile manner of a house fly, but in random starts and stops.

They don't respond to danger at all. A fly sits still for a while,
then it makes a crazy zoom across the room, bounces off objects, and finally
lands into pancake batter or window or anything. This repeats,
lasting a day or two and one by one they die.

Madness ? They sure can fly as fast as in summer. Steering and/or vision just does not work  [:)]

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Offline chris

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Why house flies act erratically in autumn ?
« Reply #1 on: 26/11/2009 19:54:35 »
I suspect there are a few reasons for this. i) They might be becoming old by this time ii) they are probably running short of food and iii) they are probably getting cold too, all of which can affect behaviour.

Chris
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Offline Don_1

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Why house flies act erratically in autumn ?
« Reply #2 on: 27/11/2009 12:13:01 »
I think age and temperature could have something to do with this, and perhaps even the changing light patterns.

I think the common house flies we are all pestered by have a short life span during the warm summer months (around 25 days in ideal conditions), but they live longer in the colder autumn months. So perhaps with this increased age comes a lack of some functions and the cold itself, as Chris suggested, will also take its toll on them.
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Offline LeeE

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Why house flies act erratically in autumn ?
« Reply #3 on: 27/11/2009 16:30:15 »
I'd vote on running short of food.  I seem to recall seeing this sort of behaviour during other times of the year when flies have been trapped in the gap between net curtains and windows, and have been unable to feed.
« Last Edit: 27/11/2009 16:32:35 by LeeE »
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!