Note 64 — Family TYRANNIDÆ.—Tyrant Flycatchers.
Reading edition
M. tyrannus, var. violentus (Tyrannus violentus, Vieill. N. D. XXXV, p. 89. Milvulus v., Scl. Catal. Am. B. 1862, 237), is the South American race of this species. It is exceedingly similar, but differs slightly, though constantly, in certain characters. We have not at present the means of comparing the two.