Ospreys depend entirely on live fish for food, making clean water and healthy fish populations essential for osprey welfare and conservation.
Ospreys in habitats with polluted or depleted fish populations experience chronic nutritional stress that affects breeding success and adult condition. Fish containing high levels of contaminants transfer these toxins to ospreys, impairing reproductive success through eggshell thinning and chick development problems. Protecting water quality and fish populations directly protects osprey welfare across their entire breeding range.