Once the male catches hold of it and brings back, the female flies in to a higher altitude and drops it in the same way.
This is repeated until the female gets an assurance that the male one has mastered the art of seriously picking up the twigs in real love and affection.
Once they get hooked up in trust, the father and the mother eagle mate for life. And they work together as parents. Apostle Paul made it clear that we must enter the kingdom of God's parental and a lover's joy, peace and righteousness only through tribulations (2 Tim 3:12; Acts 14:22; Romans 14:17).
God tests us through various trials in order to test our love for the Lord and purify it by making us learn obedience through suffering (Ps 66:10; Hebrews 5:8). God tested Abraham before he trusted Him as his dear friend for eternity (Gen 22:1, 9-12, 16-17; Is 41:8; James 2:21-23).
Some of us try to test God like the grumbling Israelites did, which is totally a wrong attitude that arises out of our sinful soulish mind (Exodus 17:7). God must be trusted because he is perfect (Matt 5:48), we need to be tested because we are imperfect beings who need to be purified through various trials, temptation and tribulations in order to be made perfect (Romans 5:3-5; Deuteronomy 8:16; Mal 3:3).
Once the tests are over, God trusts us and establishes us for eternity ahead (1 Peter 5:9-10). This is a royal courtship with God that we must undergo in order to be established for eternity.