Concise Bible Dictionary:
Osprey
Used as a symbol of protection. Under “the shadow of God’s wings” is referred to in the Psalms; and the Lord said He would often have gathered Israel as a hen gathereth her chickens under her wings, but they would not (Psa. 17:8; Psa. 36:7; Psa. 57:1; Matt. 23:37; &c). Wings were given for rapid motion. The living creatures in Ezekiel 1 had each four wings, and those in Isaiah 6:2 and Revelation 4 had each of them six wings. God’s executives are swift messengers.
Strong’s Dictionary of Greek Words:
Meaning:
from a derivative of 4072 (meaning a feather); a wing