A familiar sight atop cattails, along roadsides, and on telephone wires, the Red-winged Blackbird is one of the most abundant birds in the United States. Their tumbling song is a happy indication of the return of spring. 

The Cornell Lab of Ornithology has developed QR codes which allow you to listen to the songs and calls of hundreds of birds, right from your smart phone. We have harnessed this educational technology to allow you to hear these birds sing while completing your puzzle.