sounds like

AM
The soft thud of car doors closing.
The persistent trill of some high-throated bird and over that the brackish call of crows. Those birds have got some nerve.
The sharp exhalation of a school bus pulling in for children.

PM
The clattering of scooters and bikes against the pavement and the always-excited cries of children.
The gentle murmer of TV in another room.
My own breath coming up against a pillow.

Morning, noon and night
The crinkle of trees.
The eerie call of freight trains up and down the tracks.
The rain falling which sounds like a sigh, the rain landing which sounds like the patter of tiny footsteps.
A hum that can't be located.