Every bird is covered with feathers, and almost every feather on an individual bird is different, specialized in length, shape and structure to match whatever function is needed at that position. Feathers around the head are all quite specialized, with tiny feathers around the eyes, feathers modified into bristles at the base of the bill, and longer feathers on the throat.

Among the most specialized are the feathers that cover the ear opening. These must allow sound to pass through but also protect against debris and create a streamlined surface over the ear for air to flow across as smoothly and quietly as possible.

Small songbirds generally have about two thousand feathers, fewer in summer and more in winter. Larger birds like crows mostly have larger feathers, not more.

Possible Preaching Angle:

Think of it, 2,000 feathers on a bird and nearly every feather designed by God with a purpose in mind. With such a display of purpose in a single bird feather, is there any doubt that God has a purpose in mind for his people.