Here’s a catch made during my recent research trip to Costa Rica. Not a neotropical migrant this time, but a local resident species. This unusual-looking fellow is a Bicolored Antbird (Gymnopithys leucaspis), one of several so-called “ant-birds” that are usually found only in the vicinity of army ant swarms. All day long these birds follow the ants -at a safe distance- and expertly capture insects that are flushed, but not caught, by the invading army.