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.
source https://www.cbc.ca/player/play/9.6448117?cmp=rss
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.