Both Big Year and the Great Backyard Bird Count happen annually Extra! Extra! Backyard Birding says, "While not as long as a "Big Year," the "Great Backyard Bird Count" happens every year."
Big Year and the Great Backyard Bird Count are similar in many ways. Both Big Year and the Great Backyard Bird Count happen annually Extra! Extra! Backyard Birding says, "While not as long as a "Big Year," the "Great Backyard Bird Count" happens every year." Not to forget that both activities involve watching birds.
I think thew answer is D. "The author supplies the rubuttel that quotes more current research". I'm not 100% sure but it was the best one i could think of. Hope it's right
