Rescue centres in the central region are calling on cat owners to be responsible and get their animals neutered.
The advice comes as many shelters close their doors to the rising number of unwanted kittens.
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Part of the bridge wall and footpath in Barrow-upon-Soar in Leicestershire fell onto the tracks last summer.
His family are extremely worried as they say this is really out of character for Aaron who has never been missing before.
Very mild but often cloudy and damp.