Fieldfares and redwings are winter thrush migrants from Scandinavia whose welfare in the UK depends on the availability of berry crops and mild enough weather to maintain foraging access.
Winter thrush welfare is tightly coupled to food availability, which is in turn determined by berry crop abundance and weather conditions. Mild, wet winters allow earthworm access throughout the season, supporting good body condition. Cold, frozen winters create acute starvation risk when invertebrate access is blocked and berry supplies are exhausted. Garden provision of windfall apples and other fruits during cold snaps provides emergency food that can be welfare-significant for individual birds. Landscape management that maintains hedgerows with diverse berry-producing shrubs provides the multi-species food resource that thrushes require for sustained winter welfare.