Like the frontage road, it serves mainly to provide access to those parcels as an alternative to a frontage road. Advantages There are several advantages to using frontage roads.
Making the world better, one answer at a time. Cardinals eat a variety of wild and feeder seeds, including sunflower, safflower and most other seeds in basic wild bird seed mixes. In warm seasons they also eat insects and worms and feed their babies mainly an insectivore diet.
The chicks fledge in 7-13 days, but the male continues to feed the fledglings while the female builds a second nest. When the baby Cardinals leave the nest, they look almost prehistoric, much too immature to be thought of as a fledged bird.