(Steve Griffin | The Salt Lake Tribune) A yellow-headed blackbird flies above the wetland grasses near the Great Salt Lake Marina on April 30, 2012. The Great Salt Lake Bird Festival is May 17-21. (Steve Griffin | The Salt Lake Tribune) A yellow-headed blackbird perches in the wetland grasses near the Great Salt Lake Marina on April 30, 2012. The Great Salt Lake Bird Festival is May 17-21. (Steve Griffin | The Salt Lake Tribune) A female yellow-headed blackbird perches in the wetland grasses near the Great Salt Lake Marina on April 30, 2012. The Great Salt Lake Bird Festival is May 17-21. (Tribune file photo) Beginning birders work with guides at Farmington Bay on the Great Salt Lake during a 2003 event. (Tribune file photo) Beginning birders work with guides at Farmington Bay on the Great Salt Lake during a 2003 event.