Ryan Askren and a Canada goose fitted with a collar to track its location and activity Ryan Askren
Canada geese can be a nuisance, but harassing them to leave an area may backfire.
These birds, which often take up residence in densely populated areas of North America and northern Europe, sometimes attack people during nesting season, leave droppings on playground equipment and, most seriously, pose a risk to air traffic at airports.
Ryan Askren, then at the University of Illinois, and his colleagues tested whether harassing geese was an effective way to …
