Can I use "had" the way I have in the first sentence? Or is the second sentence correct?
(1) By the time he had descended the tree and brought the cat up, the squirrel had made a wall of acorns, and the bird had fled the scene.
(2) By the time he had descended the tree and brought the cat up, the squirrel made a wall of acorns, and the bird fled the scene.
Thanks.