1: περιστερά
(Strong's #4058 — Noun Feminine — peristera — per-is-ter-ah' )

denotes "a dove or pigeon," Matthew 3:16; 10:16 (indicating its proverbial harmlessness); 21:12; Mark 1:10; 11:15; Luke 2:24 ("pigeons"); 3:22; John 1:32; 2:14,16 .

2: τρυγών
(Strong's #5167 — — trugon — troo-gone' )

denotes "a turtle-dove" (from truzo, "to murmur, to coo"), Luke 2:24 .