sprep-pa
Just as caged canaries once warned coal miners of the risk of carbon monoxide poisoning, free-flying seabirds are now warning humanity about the deteriorating health of our oceans. Seabirds journey vast distances across Earth’s seascapes to find food and to breed. This exposes them to changes in ocean conditions, climate and food webs. This means their biology, particularly their breeding successes, can reveal these changes to us on a rare, planet-wide scale.