Attach a radar sensor to an albatross and you have a bird spy. Researchers deployed 169 of them in the Indian Ocean and found that a quarter of fishing vessels may be operating illegally
Source:
https://www.newscientist.com/article/2231442-albatrosses-strapped-with-sensors-help-spy-on-illegal-fishing-boats/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home