Hedgehog hibernation is a critical life history event in which pre-hibernation weight gain determines winter survival prospects, making autumn food availability a key welfare factor.
Hedgehog hibernation welfare is a matter of energy management across a critical seasonal transition. Individual hedgehogs that enter hibernation underweight face a straightforward survival challenge: insufficient fat reserves to sustain basic metabolism through winter. Late-born juveniles are particularly vulnerable; the mismatch between birth date and the onset of winter conditions means many never reach safe weight. Supplementary autumn feeding - particularly protein-rich cat or dog food - helps underweight hedgehogs gain the reserves they need. Checking and protecting hibernation sites from disturbance and garden machinery is an equally important welfare contribution.