The nest, which he has presented to me, is attached to a small branch, and several leaves from a twig issuing from it, which have apparently been bent down for the purpose. It is very small, even for the size of the bird, being an inch and a half in depth, and an inch and a quarter in breadth externally at the mouth, while its internal diameter is ten-twelfths, and its depth eight and a half twelfths. It is of a conical form, and composed of the cottony down apparently of some species of willow, intermixed with scales of catkins and a few feathers, and lined with the same substances. The eggs, two in number, are pure white, of a nearly elliptical form, five-twelfths of an inch long, and three and a quarter twelfths in their greatest breadth.

The figures of the nest and female are taken from the specimens presented to me by Mr. NUTTALL. Those of the male I made from specimens, for the use of which I am indebted to Mr. LODDIGE, of London, whose collection of Humming-birds is unrivalled. This species is the fourth now found within the limits of the United States.

OISEAU-MOUCHE ANNA, Ornismya Anna, Less. Traite d’Ornith., P. 281.

ANNA HUMMING-BIRD, Trochilus Anna, Aud. Orn. Biog., vol. v. p. 238.

Male, 3 10/12, wing, 2 1/12.

Rocky Mountains towards California. Common. Migratory.