This trochaic poem, with Dickinson's irregular punctuation, has an irregular rhyme scheme with the 1st and 2nd lines sometimes rhyming with near rhyme, but not always:
These are the days when Birds come back—
A very few—a Bird or two—
To take a backward look.
These are the days when skies resume
The old—old sophistries of June—
A blue and gold mistake.
It's theme is a twist on the sacred religious theme of Communion. It compares the return of birds to a fraud that threatens to "cheat the bees." It invites children to partake of the ritual of returning waves of nature's patterns.