In the story of God and Abraham in Genesis 15: 9 - 18 And he said unto him, Take me an heifer of three years old, and a she goat of three years old, and a ram of three years old, and a turtledove, and a young pigeon. - Genesis 15:9
And he took unto him all these, and divided them in the midst, and laid each piece one against another: but the birds divided he not. - Genesis 15:10
And when the fowls came down upon the carcases, Abram drove them away. - Genesis 15:11
And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him. - Genesis 15:12
And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years; - Genesis 15:13
And also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance. - Genesis 15:14
And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age. - Genesis 15:15
But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full. - Genesis 15:16
And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces. - Genesis 15:17
In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates: - Genesis 15:18

Does chasing the birds away by Abraham have anything to do with the prediction of four generations of captivity of Israekites? You opinion is needed pls.