I am fussing a pair of Bengals when owners are away on holiday and I have looked after these 2 beautiful girls before but this time they are excessively vocal - not just meowing but they seem to be yowling too - I have tried to ignore them (not easy!), fussed them, let them outside (with supervision), played with them, got a radio on for them but nothing seems to work! Don't want to go down the food/treat route as this will not be good for their figures! Have text'd the owners and they have suggested a few things - already done them! They also say that is just them!

So my question is .......is this normal for Bengals or is there an underlying medical reason????? The owners are not concerned but I just wonder if a trip to vets is in order???
If it is normal what can i do to quieten them down???????

Thanks guys!