The RSPCA in Swansea says it is seeing an increase in the number of abandoned cats and kittens it's taking in.
Staff there described this year as the 'worst ever' for the problem and said they're struggling to cope.
The problem stems from cat owners being caught out when their un-neutered pets have litters.
Now the society is working with Cardiff University to try to establish why owners aren't taking preventative measures.
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Heavy rain likely across some of the hills and western slopes in particular.
Kyle Vaughan was last seen on 30th December 2012. His parents Alan and Mary say all they want for Christmas is to lay him to rest.
People in Wales are being forced to take temporary work as there are too few permanent jobs being created, according to Wales TUC.