Ospreys serve as sentinel species for aquatic ecosystem health, with population welfare reflecting the state of fish communities and water quality across their range.
Osprey monitoring is a case where individual bird welfare and ecosystem health assessment converge. Breeding success failures in monitored pairs indicate not just individual welfare problems but systemic environmental issues affecting entire fish communities. The welfare-ecosystem connection is direct: ospreys in areas with healthy fish populations, clean water, and adequate nest sites show reproductive success and behavioral repertoires consistent with good welfare. Environmental degradation harms individual ospreys while simultaneously signaling broader welfare harms across the aquatic food web.