“ To ensure the eradication was successful, the teams have been monitoring, searching, and surveying for yellow crazy ants.” For about a decade, the ants have threatened the seabirds by swarming their nests — and anything else on the ground.... The ants spray formic acid on the birds, causing injuries including blindness and even death, Fish and Wildlife Service officials said. Volunteers and federal workers comprised so-called Crazy Ant Strike Teams that experimented with baits and other techn