Thanks for the advise. No She does not bury her food in the litter box but covers it with plastic, paper or her favourite my tea towels. I have a feeling she was a feral cat adopted from the SPCA which would explain her lack of ready food..She is a very loving cat and I find her little antics quite amusing. I try to keep her littler box clean so that she does not think she has to cover it with papers or something she finds in the house.(not my tea towels.
Thanks again