Luke 13:19

it is like a grain of mustard-seed, which a man took, and sowed in his garden: it grew, and became so large, that the birds of the air built their nests in its boughs.

Matthew 13:32

'tis one indeed of the smallest grains: but when it is grown, it is the largest of the pulse kind, and becomes a tree: so that the birds of the air come and lodge in its branches.

Mark 13:32

as to the day and hour, that no one knows, neither the angels in heaven, nor even the son; but the father only.

Treasury of Scripture Knowledge

Summary

The leaves thereof were fair, and the fruit thereof much, and in it was meat for all: the beasts of the field had shadow under it, and the fowls of the heaven dwelt in the boughs thereof, and all flesh was fed of it.

Bible References

The fowls

Mark 13:32
as to the day and hour, that no one knows, neither the angels in heaven, nor even the son; but the father only.
Luke 13:19
it is like a grain of mustard-seed, which a man took, and sowed in his garden: it grew, and became so large, that the birds of the air built their nests in its boughs.