. . 425 ANNAS HUMMINGBIRD. Life-si/e. GOATSUCKERS, HUMMING-BIRDS, ETC. 247 to the mountain sides, where, with numerous individuals ofits own kind and other birds, it finds a resting-place throughthe dark hours. The nests are delicate affairs, and in many cases resem-ble small sponges, readily assuming their normal form if theedges are pressed together. The inner cup is seldom morethan one inch in diameter. The walls are usually composedof the down of willows. This is firmly woven by an unspar-ing use of spider web. Usually a few smal
. . 425 ANNAS HUMMINGBIRD. Life-si/e. GOATSUCKERS, HUMMING-BIRDS, ETC. 247 to the mountain sides, where, with numerous individuals ofits own kind and other birds, it finds a resting-place throughthe dark hours. The nests are delicate affairs, and in many cases resem-ble small sponges, readily assuming their normal form if theedges are pressed together. The inner cup is seldom morethan one inch in diameter. The walls are usually composedof the down of willows. This is firmly woven by an unspar-ing use of spider web. Usually a few small leaves andscales of willow buds are attached to the outer face, evi-dently to give it stability. It has been stated that humming-birds invariably lay buttwo eggs in each set. The female black-chinned humming-bird seems to be at least one of the exceptions that prove therule. Major Bendire says that nests of this species nowand then contain three eggs, all evidently laid by the samefemale, and such instances do not appear to be especiallyrare. THE ANNAS HUMMI
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