The Northern Mockingbird is an impressive singer! This species gets its name from how they mimic the songs of other birds. The more sounds the male is able to include in his song, the more likely he is to attract a female.
Tune into KRCB.org (104.9 FM Sonoma County) to listen for the current segment. Ear to the Wild is a short interstitial segment aired somewhat randomly throughout the day between other programs. They use shorts and postcards to fill airtime during breaks from Morning Edition and All Things Considered. Also during their music programing, as needed. Greta Mart tends to air them during her show around 4:47 or 5:47.
Check out these links for more information about the Northern Mockingbird:
Santa Clara Valley Audubon Society: Northern Mockingbird
All About Birds: Northern Mockingbird
Wikipedia: Northern Mockingbird