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SOURCES – 6 surefire ways to attract more cardinals to your bird feeder

The following sources were consulted in the preparation of the article “6 surefire ways to attract more cardinals to your bird feeder.”

  1. Northern Cardinal
  2. Feeding Birds: a Quick Guide to Seed Types
  3. Northern Cardinal
  4. Turn Your Yard Into a Red Zone
  5. The Audubon Guide to Winter Bird Feeding