The welfare success of wild bird rehabilitation depends heavily on release site quality, rehabilitation duration, and the ability to return birds to appropriate ecological conditions.
Wild bird rehabilitation welfare is measured not just by immediate survival but by the quality of life achieved post-release. A bird released into inappropriate habitat, too early in recovery, or at the wrong time of year faces a welfare outcome often worse than compassionate euthanasia. High-quality rehabilitation prioritises natural behaviour expression during captive recovery, minimal human imprinting, appropriate weight and physical condition at release, and release into suitable habitat. The welfare decision to euthanase an unrelesable bird - one that cannot survive independently - requires courage and training. Prolonging life in captivity for an unreleasable wild bird often causes greater welfare harm than timely euthanasia.