In scripture we see a referral to the sons of God who came down to earth along with Nephelium. Here are the verses referring to this:

Genesis 6 When human beings began to increase in number on the earth and daughters were born to them, 2 the sons of God saw that the daughters of humans were beautiful, and they married any of them they chose. 3 Then the Lord said, “My Spirit will not contend with[a] humans forever, for they are mortal[b]; their days will be a hundred and twenty years.”

4 The Nephilim were on the earth in those days—and also afterward—when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown.

5 The Lord saw how great the wickedness of the human race had become on the earth, and that every inclination of the thoughts of the human heart was only evil all the time. 6 The Lord regretted that he had made human beings on the earth, and his heart was deeply troubled. 7 So the Lord said, “I will wipe from the face of the earth the human race I have created—and with them the animals, the birds and the creatures that move along the ground—for I regret that I have made them.” 8 But Noah found favor in the eyes of the Lord. 

Some have indicated they could have been sons of Seth, the 3rd son of Adam and Eve, some say they were Demons, but I test they were indeed sons of God. There were 44 sons of God. 41 of them  came to earth  along with Nephilim and giants. The sons of God and Nephelium created a bloodlines. Sons of God mated with human females  but God disapproved and removed the ability for a long life now only 120 years. 

The 2 others who were obedient and served God as His sons now in honored roles, These two are  not referred to sons of God. They hold honored position serving on earth currently.

The sons of God may have been seen to be an angel but they do not have wings 

4 of these sons who had come to earth returned to heaven. These 4 had not mated with humans. 37 of them no longer exist.   

Jesus individuated 180,000 years ago. Jesus is referred to the only Son of God. The one who was chosen to redeem humanity and sit on the right hand of God the Father.