Family 64. CREEPERS. Certhiidæ.
Bill slender and much decurved; tail usually pointed and stiffened.
Family 65. NUTHATCHES AND TITS. Paridæ.
Fourth or fifth primary longest; first an inch or less in length. Chickadees (subfamily Parinæ) have a short, stout bill, the nostrils covered with bristles; the tail is rather long and rounded. Nuthatches (subfamily Sittinæ) have a long, slender bill, short, square tail, and large feet.
Family 66. KINGLETS, GNATCATCHERS, ETC. Sylviidæ.