The PBMS expanded its monitoring range of compounds to reflect contemporary conservation and regulatory concerns. Monitoring of the assimilation of industrial polychlorinated biphenyls (PCBs) began in 1966 after these contaminants were identified as pollutants that were potentially toxic to birds.

In terms of long-term trends, there has been a decline in congener sum PCB contamination in the eggs of most of the species that have been monitored, except for coastal nesting golden eagles. In contrast, there has been no significant decline over time in PCB concentrations in sparrowhawk livers.

How can you help?

If you find a dead bird of prey telephone us (01524 595830) or Contact us and see the How to send us a dead bird page.


GDPR, Privacy Policy and Cookies

The PBMS website is provided by the Centre for Ecology & Hydrology under the terms of the CEH Privacy policy which sets out the basis on which any personal data we collect from you, or that you provide to us, will be processed by us. Information collected by the PBMS will be used for scientific purposes only under the GDPR lawful basis of Public task, not shared with any other party and retained for the duration of the project. Cookies may be set on your computer when you visit this site. What are Cookies?