Anthus ludovicianus (I, 171). Mr. Allen found this species breeding in the summer of 1871 on the summit of Mt. Lincoln, Colorado Territory, above the timber-line, at an altitude of over 13,000 feet.
Helmitherus vermivorus (I, 187). Professor Frank H. Snow procured a specimen of this species near Lawrence, Kansas, May 6, 1873.
Helmitherus swainsoni (I, 190). Was obtained in Florida by Mr. W. Thaxter.
Helminthophaga virginiæ (I, 199). Very common in El Paso County, Colorado, where it was obtained by Mr. Aiken.
Helminthophaga luciæ (I, 200). We are indebted to Captain Bendire for the discovery of the nest and eggs of this comparatively new Warbler. He first met with its nest near Tucson, Arizona, May 19, 1872. Unlike all the rest of this genus, which, so far as is known, build their nests on the ground, this species was found nesting something after the manner of the common Gray Creeper, between the loose bark and the trunk of a dead tree, a few feet from the ground. Except in their smaller size the eggs also bear a great resemblance to those of the Creeper. In shape they are nearly spherical, their ground is of a crystal whiteness, spotted, chiefly around the larger end, with fine dottings of a purplish-red. They measure .54 of an inch in length by .45 in breadth.
Helminthophaga celata, var. lutescens (I, 204). See Am. Nat. Vol. VII, October, 1873, p. 606.
Helminthophaga peregrina (I, 205). Obtained in El Paso County, Colorado, in September, 1873, by Mr. Aiken.
Parula americana (I, 208). Obtained in May in El Paso County, Colorado, by Mr. Aiken.
Dendroica vieilloti, var. bryanti (I, 218). See Am. Nat. VII, October, 1873, p. 606.