Animal welfare officers are caring for more than 150 rabbits, guinea pigs and other small furry creatures after many were abandoned in the cold.
The Scottish SPCA said the animals can often end up in their rescue centres when children lose interest.
The charity issued a reminder that abandonment is an offence and anyone found guilty of doing so could be banned from keeping animals for life.
Janet Kirkpatrick, senior animal care assistant at the charity's centre in Hamilton, Lanarkshire, said: "It's not just dogs and cats being abandoned, it's what we call our small furries - be it rabbits, guinea pigs, gerbils.
"Mum and dad get a rabbit or guinea pig for Christmas, kids lose interest because it's not doing things like sitting or begging, or because of the cleaning involved. We end up getting them in here, or in a lot of cases the rabbits are abandoned, as in put out in the street or the countryside."
The Scottish SPCA's nine centres are currently caring for 162 small furries, with some rescued after being found dumped in the street.
Two female rabbits called Holly and Ivy were discovered in a cage inside a bag left beside bins at a block of flats in Hamilton earlier this month. Now ready for rehoming, the pair were left in a cage that was only big enough for one guinea pig.
Ms Kirkpatrick said: "I'm not sure whether those who abandon rabbits in the countryside think they will just be like wild rabbits and they will be fine, but domesticated rabbits are used to living in hutches indoors so it's not going to be like a wild rabbit. There are foxes, cats, dogs that can get a hold of them, so it's quite a cruel thing to do. All our centres are inundated with rabbits.
"If you have an older child, be sensible, talk about the responsibility to help clean, read on the internet and read books and if everyone is in agreement then fine. But don't just get one on a whim, because the wee cuddly rabbit or guinea pig grows up.
"The most cruel thing is the abandonment, some of them don't even put them in a place where someone will find them, basically they're put in a place where they are going to die if someone doesn't come along and pick them up."