et three days after, when I looked into the nest again
and found all but one egg hatched, the young interloper was at least
four times as large as either of the others, and with such a
superabundance of bowels as to almost smother his bedfellows beneath
them. That the intruder should fare the same as the rightful
occupants, and thrive with them, was more than ordinary potluck; but
that it alone should thrive, devouring, as it were, all the rest, is
one of those freaks of Nature in which she would seem to discourage
the homely virtues of prudence and honesty. Weeds and parasites have
the odds greatly against them, yet they wage a very successful war
nevertheless.

The woods hold not such another gem as the nest of the humming-bird.
The finding of one is an event to date from. It is the next best thing
to finding an eagle's nest. I have met with but two, both by chance.
One was placed on the horizontal branch of a chestnut-tree, with a
solitary green leaf, forming a complete canopy, about an inch and a
half above it. The repeated spiteful dartings of the bird past my
ears, as I stood under the tree, caused me to suspect that I was
intruding upon some one's privacy; and following it with my eye, I
soon saw the nest, which was in process of construction. Adopting my
usual tactics of secreting myself near by, I had the satisfaction of
seeing the tiny artist at work. It was the female, unassisted by her
mate. At intervals of two or three minutes she would appear with a
small tuft of some cottony substance in her beak, dart a few times
through and around the tree, and alighting quickly in the nest arrange
the material she had brought, using her breast as a model.

The other nest I discovered in a dense forest on the side of a
mountain. The sitting bird was disturbed as I passed beneath her. The
whirring of her wings arrested my attention, when, after a short
pause, I had the good luck to see, through an opening in the leaves,
the bird return to her nest, which appeared like a mere wart or
excrescence on a small branch. The humming-bird, unlike all others,
does not alight upon the nest, but flies into it. She enters it as
quick as a flash, but as light as any feather. Two eggs are the
complement. They are perfectly white, and so frail that only a woman's
fingers may touch them. Incubation lasts about ten days. In a week the
young have flown.

The only nest like the humming-bird's, and comparable to it in
neatness and symmet