SP. CHAR. Resembling _virginianus_, having, like it, the distinct grayish edges to feathers of the dorsal region. Red lighter, however, and the top of head, including crest, nearly pure vermilion, instead of brownish-red. Black of the lores not passing across the forehead, reaching only to the nostril. Wing, 4.00; tail, 5.00; culmen, .83; depth of bill, .66; breadth of upper mandible, .38. (No. 49,757 ♂, Camp Grant, 60 miles east of Tucson, Arizona).
_Female_ distinguishable from that of _virginianus_ only by more swollen bill, and more restricted dusky around base of bill. _Young_: bill deep black.
HAB. Cape St. Lucas; Camp Grant, Arizona; Tres Marias Islands (off coast of Mexico, latitude between 21° and 22° north). Probably Western Mexico, from Sonora south to latitude of about 20°.
In the features pointed out above, all specimens from Arizona and Tres Marias, and of an exceedingly large series collected at Cape St. Lucas, differ from those of other regions.
No specimens are in the collection from Western Mexico as far south as Colima, but birds from this region will, without doubt, be found referrible to the present race.
HABITS. There appears to be nothing in the habits of this form of Cardinal, as far as known, to distinguish it from the Virginia bird; the nest and eggs, too, being almost identical. The latter average about one inch in length, and .80 in breadth. Their ground-color is white, with a bluish tint. Their markings are larger, and more of a rusty than an ashy brown, and the purple spots are fewer and less marked than in _C. virginianus_.
The memoranda of Mr. John Xantus show that in one instance a nest of this bird, containing two eggs, was found in a mimosa bush four feet from the ground; another nest, with one egg, in a like situation; a third, containing three eggs, was about three feet from the ground; a fourth, with two eggs, was also found in a mimosa, but only a few inches above the ground.
_Pipilo_, VIEILLOT, Analyse, 1816 (AGASSIZ). (Type, _Fringilla erythrophthalma_, LINN.)
GEN. CHAR. Bill rather stout; the culmen gently curved, the gonys nearly straight; the commissure gently concave, with a decided notch near the end; the lower jaw not so deep as the upper; not as wide as the gonys is long, but wider than the base of the upper mandible. Feet large, the tarsus as long as or a little longer than the middle toe; the outer lateral toe a little the longer, and reaching a little beyond the base of the middle claw. The hind claw about equal to its toe; the two together about equal to the outer toe. Claws all stout, compressed, and moderately curved; in some western specimens the claws much larger. Wings reaching about to the end of the upper tail-coverts; short and rounded, though the primaries are considerably longer than the nearly equal secondaries and tertials; the outer four quills are graduated, the first considerably shorter than the second, and about as long as the secondaries. Tail considerably longer than the wings, moderately graduated externally; the feathers rather broad, most rounded off on the inner webs at the end.