53. Petrochelidon lunifrons (Say) Lawr. Cliff Swallow.—At Yuma. “They were breeding abundantly along a bluff above the town.”
54. Tachycineta bicolor (Vieill.) Caban. White-bellied Swallow.—“Common in the migrations.”
195, ♂ ad., Cienega Station, April 15. “Iris dark brown; bill black; legs brown.”
55. Tachycineta thalassina (Swains.) Caban. Violet-green Swallow. “Common.”
212, ♀ ad., Cienega Station, April 16. “Iris dark brown; bill and legs black.”
56. Stelgidopteryx serripennis (Aud.) Baird. Rough-winged Swallow.—Common. Breeds.
211, ♀ ad., Cienega Station, April 16. “Iris and legs dark brown.”
57. Pyranga ludoviciana (Wils.) Bp. Louisiana Tanager.—Santa Rita Mountains. “They frequent oaks, and are not very common.”
408, ♂ ad., Santa Rita Mountains, May 18. Length, 7.30; extent, 7.60; wing, 3.80; tail, 3.17. “Iris dark brown; bill blackish horn-color above, greenish-yellow below.”
58. Pyranga hepatica Swains. Liver-colored Tanager.—This Tanager was not uncommon in the Santa Rita Mountains, where the first specimen was taken on May 12. “They range from the foot-hills, through the oaks to the lower pines on the mountains.”