Texas drought twists migrations of many birds
Drought Migratory Birds
Credit: AP
A flock of geese fly over Mad Island, Texas, Wednesday, Feb. 15, 2012. In a typical winter, the Texas Gulf Coast is packed with tens of thousands of birds _ songbirds, waterfowl, catbirds, gnatcatchers, warblers and other migrants. But this year, an annual count done just before Christmas found the population had dropped steeply. (AP Photo/Pat Sullivan)
