Due to the climate crisis and global warming, a species of bird has evolved senses that are heightened to warn about the incoming disasters. They are nature's own public warning system. The colors of their feathers adapt to the temperature changes. Humans and non-humans rarely hunt them as they are an integral part of keeping everyone safe. Just before a climate disaster, the normally white-feathered birds circle around the island with feathers in bright neon color squawking.
After their death, humans mourn and carefully collect their feathers from the corpses. Their feathers are still way more sensitive than any human-made sensors to atmospheric changes. The islanders use the feathers for scientific research, religious rituals, fancy garments.