Because I'm addicted to photos of singing birds:

Yellow-breasted chat

Red-winged Blackbird


Common Yellowthroat


True Confessions:

The photos above are of birds you may see at various times in Central Park. They were taken by noted Central Park photographer David Speiser in recent weeks, and there are many other great photos from this series on his website http://www.lilibirds.com. However, the Common Yellowthroat in the photo above happened to be singing at the Lostwood National Wildlife Refuge, the Chat at Theodore Roosevelt National Park, South Unit, and the Red-winged Blackbird at the Sayler National Wildlife Refuge, all in North Dakota.