Family 55. SWALLOWS. Hirundinidæ.
Bill short, broad and flat; feet small and weak; wings long and narrow; tail notched and sometimes forked; birds of the air, feeding while on the wing.
Family 56. WAXWINGS. Ampelidæ.
Bill short, stout, and rounded, its tip notched; wings rather long; head crested.
Family 57. SHRIKES. Laniidæ.
Bill stout, its mandible hooked and hawk-like; feet truly Passerine; pose, in perching, erect; solitary grayish birds.
