The bird species has long ridden dramatic population swings. About 3,000 snail kites lived in Florida in 2001, but a severe drought that year devastated the Everglades and Lake Okeechobee, cutting the ...

The Everglades seldom benefit from invasive species. But now, as non-native apple snails disappear, the endangered Everglades bird, the snail kite, is paying the price.