When the Lord created the birds, He gave each a unique design which includes not only their appearance, but also the sounds they make. Below is an interesting video about the sounds of the different birds. It is a little lengthy (9 min.) but well worth watching.
The Language of Birds by LabofOrnithology
The flowers appear on the earth; the time of the singing of birds is come, and the voice of the turtle is heard in our land; (Song of Solomon 2:12 KJV)
Each of the bird’s songs and sounds help them to communicate with one another, and with other species. Many times one bird, like a Blue Jay, will sound an alarm that warns all of the birds of an impending danger. Lots of birds singing is a sign that all is well in that area.
Just as the Lord uniquely gave each bird a separate song or sound, the Lord has given each of us in the church separate unique abilities and talents. One may be the preacher, one the song leader, teachers, choir or orchestra members, sound and video workers, baby sitters, ushers, etc. We all are different, but when all of those abilities are brought together, like all of those birds in the rain forest that make beautiful music together, we worship and serve the Lord jointly.
Thy hands have made me and fashioned me: give me understanding, that I may learn thy commandments. (Psalms 119:73 KJV)
Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God; And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone; In whom all the building fitly framed together groweth unto an holy temple in the Lord: In whom ye also are builded together for an habitation of God through the Spirit. (Ephesians 2:19-22 KJV)