No More Learning

In short, they who have not attended particularly to this subject are
but little aware to what an extent quadrupeds and birds are employed,
especially in the fall, in collecting, and so disseminating and
planting, the seeds of trees. It is the almost constant employment of
the squirrels at that season, and you rarely meet with one that has
not a nut in its mouth, or is not just going to get one. One
squirrel-hunter of this town told me that he knew of a walnut tree
which bore particularly good nuts, but that on going to gather them
one fall, he found that he had been anticipated by a family of a dozen
red squirrels. He took out of the tree, which was hollow, one bushel
and three pecks by measurement, without the husks, and they supplied
him and his family for the winter. It would be easy to multiply
instances of this kind. How commonly in the fall you see the
cheek-pouches of the striped squirrel distended by a quantity of nuts!
This species gets its scientific name, _Tamias_, or the steward, from
its habit of storing up nuts and other seeds. Look under a nut tree a
month after the nuts have fallen, and see what proportion of sound
nuts to the abortive ones and shells you will find ordinarily. They
have been already eaten, or dispersed far and wide. The ground looks
like a platform before a grocery, where the gossips of the village sit
to crack nuts and less savory jokes. You have come, you would say,
after the feast was over, and are presented with the shells only.

Occasionally, when threading the woods in the fall, you will hear a
sound as if some one had broken a twig, and, looking up, see a jay
pecking at an acorn, or you will see a flock of them at once about it,
in the top of an oak, and hear them break them off. They then fly to a
suitable limb, and placing the acorn under one foot, hammer away at it
busily, making a sound like a woodpecker's tapping, looking round from
time to time to see if any foe is approaching, and soon reach the
meat, and nibble at it, holding up their heads to swallow, while they
hold the remainder very firmly with their claws. Nevertheless it often
drops to the ground before the bird has done with it. I can confirm
what William Bartram wrote to Wilson, the ornithologist, that "the jay
is one of the most useful agents in the economy of nature, for
disseminating forest trees and other nuciferous and hard-seeded
vegetables on which they feed.
Their chief employment during the
autumnal season is foraging to supply their winter stores. In
performing this necessary duty they drop abundance of seed in their
flight over fields, hedges, and by fences, where they alight to
deposit them in the post-holes, etc. It is remarkable what numbers of
young trees rise up in fields and pastures after a wet winter and
spring. These birds alone are capable, in a few years' time, to
replant all the cleared lands. "

I have noticed that squirrels also frequently drop their nuts in open
land, which will still further account for the oaks and walnuts which
spring up in pastures, for, depend on it, every new tree comes from a
seed. When I examine the little oaks, one or two years old, in such
places, I invariably find the empty acorn from which they sprung.

So far from the seed having lain dormant in the soil since oaks grew
there before, as many believe, it is well known that it is difficult
to preserve the vitality of acorns long enough to transport them to
Europe; and it is recommended in Loudon's "Arboretum," as the safest
course, to sprout them in pots on the voyage. The same authority
states that "very few acorns of any species will germinate after
having been kept a year," that beech mast "only retains its vital
properties one year," and the black walnut "seldom more than six
months after it has ripened. " I have frequently found that in November
almost every acorn left on the ground had sprouted or decayed. What
with frost, drouth, moisture, and worms, the greater part are soon
destroyed. Yet it is stated by one botanical writer that "acorns that
have lain for centuries, on being ploughed up, have soon vegetated. "

Mr. George B. Emerson, in his valuable Report on the Trees and Shrubs
of this State, says of the pines: "The tenacity of life of the seeds
is remarkable. They will remain for many years unchanged in the
ground, protected by the coolness and deep shade of the forest above
them. But when the forest is removed, and the warmth of the sun
admitted, they immediately vegetate.