"At My Window"

In "At My Window," the lines "A little brown sparrow came fluttering down" and "I ran out of breath, and I fell to the ground" are sung to generally descending melodies spanning almost an octave (D# to E).  Musically, this gives a sense of the "fluttering down" and "fell to the ground."  After "A little brown sparrow came fluttering down," there's also a descending line played on what I think is a sort of flute (for the same musical picture) and something like a bird call (to represent the sparrow).