Robert Frost (March 26, 1874 – January 29, 1963 / San Francisco)

wow the essence of eve's voice was captured in
the bird's song and expressed so beautifully in
this write..fabulous.. :)

This poem seems to me just to be Robert Frost paying respect to females. Women are considered the daughters of Eve and at least the way I interpret it is that after hearing a woman's voice, a bird's is just never as sweet.
This poem is also a rejection of the pervasive naturalism in the 20th century since it demonstrates the impact that Eve has upon nature. The possibility that nature would attempt at mimicking humans is a blatant laugh in the face of naturalism.

I don't believe that divinity has anything to do with it, nor is there any direct mention of Adam.
Eve's tones and eloquence, her influence on the birds, goes way back, and is used by Frost to cojoin the human with the natural world, to the mutual enrichment of both.

The soul of the sonnet is metaphor: what Eve's voice does not only to the sound of birds but to the ear of Adam- the namer-poet. Why she came is a myth of origin that precedes a Father of poetry like Orpheus and his mythical lyre; moreover, there's no escaping the intention or influence of divinity, since the creator of Adam created Eve and the voice of Eve. I under-read Frost sometimes:

Eve adds the soft eloquence of Sound to Adam's task of Naming (Words) , and that, I venture, marks the birth of poetry-NB: only Adam would have known the sound of birds before the birds absorbed Eve's over-sound, as Adam's son, Robert Frost, celebrates Sound and Sense, the phrase made famous by Alexander Pope. Thus, it seems to follow, never again should we refer to the Father or Mother of poetry, but to the Parents of poetry.