Up until now, perhaps the biggest gap in all of the North American bird identification literature has been a thorough treatment of the tyrant flycatchers. At last, Cin-Ty Lee and Andrew Birch have changed that with the arrival of their Field Guide to North American Flycatchers, or should I say, guides. The first one in the series is out and includes treatment of the Contopus pewees and the Empidonax flycatchers, along with the closely related Tufted Flycatcher in the genus Mitrephanes.