Red squirrel conservation in the UK involves active management of grey squirrels and disease, with welfare implications for both species requiring careful ethical consideration.
Red squirrel conservation creates an ethical dilemma around grey squirrel welfare. Lethal control of greys through trapping and shooting causes welfare harm to individual grey squirrels to benefit red squirrel populations. The trapping methods used, including live trapping and shooting, must meet welfare standards. Squirrelpox infection in red squirrels causes fatal but relatively rapid disease. Immunocontraception research may eventually reduce the need for lethal control.