Can you correctly identify all 21 species of sparrows in this short video? Our new Sparrow ID course can help! Dr. Kevin McGowan has developed our newest ID course with his best tips and tricks for identifying more than 40 species of sparrows that could be on your feeders right now. As a reminder, our Early Bird 20% discount is good through April 15th. http://bit.ly/2uLdBRq | Cornell Lab of Ornithology