Note 76 — Family TYRANNIDÆ.—Tyrant Flycatchers.
Reading edition
Myiarchus tristis, var. nigricapillus, Cabanis. “Myiarchus nigricapillus, Caban.” Scl. Cat. Am. B. 1862, 233, et Auct. M. lawrencei, Coues, P. A. N. S. 1872, 74 (in part).
Obs.—A very strongly differentiated form, but unquestionably grading into var. lawrencei on the one hand, and var. nigriceps on the other.