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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

If you've ever been on a fishing boat, you've probably seen flocks of birds following in your wake, hoping to catch a snack.

Well, now scientists say they can use those birds' behavior to track illegal fishing boats.

Here's how that works.

Researchers attach data loggers to the backs of 169 albatrosses

in the southern and Indian oceans. The devices weighed only an ounce and a half, but they included a

GPS and were able to detect the presence and intensity of radar signals emanating from boats.

That information was then transmitted by satellite so the researchers could track the location

of the birds, and thus the radar-emitting boats, in real time.

The scientists then cross-checked that data against the known location of boats,

gleaned from a system boats used to declare themselves, called the automatic identification system,

and discrepancies appeared frequently.

More than a third of the times the birds' loggers detected radar signals, and discrepancies appeared frequently. More than a third of the times the

birds' loggers detected radar signals, and therefore a boat, no such boat appeared in the official

log, meaning that the vehicles had likely switched off their automatic identification systems,

something the researchers say probably happens in illegal fishing operations. The results are in the proceedings of the National Academy of Sciences.

The work suggests birds could be an effective boat monitoring tool,

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