The RSPCA is considering cutting 25 of its 481 job for for inspectors, animal welfare officers and animal collection officers.
The charity said no decision had yet been made and staff would be consulted before any changes. If it does decide to shrink its workforce, it expects to do so by non-replacement of staff who leave and does not anticipate the need for compulsory redundancies.
"These discussions are not part of a wider restructuring," a statement from the RSPCA said. "But like many charities and other organisations we are having to make some savings in difficult financial times to make sure we can continue to do the best we can for animal welfare."