WATCH | Quebec’s cardinal population is booming. This researcher thinks she knows why

A graduate student at McGill University tagged 41 birds with antennas last winter. She says bird feeders in residential areas can be a reliable source of food for cardinals.

WATCH | Quebec’s cardinal population is booming. This researcher thinks she knows why
Woman in right third of frame dressed in winter gear holding a radio frequency sensor, with a thumbs up. Cardinal superimposed on left side of frame.

A graduate student at McGill University tagged 41 birds with antennas last winter. She says bird feeders in residential areas can be a reliable source of food for cardinals.