the team

Of Ents Yavanna sang, and Ents there were
'though dormant, until Durin rose and walked.
Green guardians of all that's dear to Her,
but--at that time--they neither sang, nor talked.
Age-long, their thoughts were only for themselves
and sessile Olvar, sprung from Aule's soil.
The gift of language came to them through elves,
and for that debt, they're everlasting loyal.
Olorin showed up late in Eru's plan,
inserted as Dark Powers spread and grew.
As shepherd not to trees, but mortal man,
he guided much that others were to do.
'Though Hobbits joined the narrative quite late
on "Gandalf's pets" depends all Arda's fate.