Birds have different symbolic meanings. Eagles are a symbol of strength, freedom, and independence. Owls are seen as being a symbol for wisdom. Swans are a symbol of grace. White doves are symbolic of peace and bluebirds are seen as the symbol of happiness and love.
Bluebirds hang around my house all the time. At first I would smile with recognition thinking "Oh, isn't that nice. Someone loves me and is thinking of me!" I then started to reward the bluebirds with a nut and thank them for stopping by with their lovely message. The only problem now is they are here each morning and seem to now carry the message, "Hey, girl, where's our nut?"
Funny how love can change.