See the Robins

Dark Raph didn't know exactly how he found out that Dark Don wanted to see a robin. But he knew that he had to find a way for the purple clone to see one in real life. Seeing as they went extinct fifty years ago, there was no way that the purple clone would be able to see them in their time.
So the red turtle stole the plans for Cody's time window, and started modifying it. Despite the fact that he occasionally fudged sentences, he was actually very smart. So he had been quietly stealing things and putting them together for about three weeks. And the time machine was pretty darn close to completion. "I knew someone was taking my tools," growled a voice. Dark Raph jumped. "Where are you? Where the hell is the light switch in this room?" Dark Raph carefully moved to try and frame Dark Mikey, who shared a room with him, but he accidentally stepped on the light switch, which he'd taken out of the wall ages ago. "Raph? What would you need my tools for....?" Dark Don had caught sight of the time machine. "Raph? What the hell is this?"
"It's a time window," the red turtle muttered, preparing to get his intelligence insulted.
"Why would you need one?"
"You wanted to see the robins," Dark Raph said softly. Dark Don froze.
"How did you know?"
"I saw you watching a vidfeed of them."
"Moron," Dark Don whispered. "I don't need to see one..."
"But you want to," said the red turtle. "And because you want to, I want you to. It's almost done you know." Dark Don was silent for a moment.
"Thanks Raph."
"No problem. Why don't you help me finish it?"

XxXxX

Dark Don looked pleased, and so did Dark Raph. "Remember, not a word to Leo or Mikey."
"Hey, I don't want them to know I built this just so you could see a bird."
"We'll have to destroy it afterwards too," added Dark Don, a brief expression of regret appearing on his face.
"Not if we hide it," said Dark Raph, smirking. "Come on." With that, they went through the window and vanished. Dark Mikey smirked from the doorway.
"Well, I dunno about hiding it from ME, but I won't tell Leo." The yellow clone closed and locked the door using one of Dark Don's passwords, which only the purple clone knew the counter password for. Dark Mikey walked off. He had absolutely zero interest in visiting other times. Why go to the uncertain, ever-changing future, or to the boring, less advanced past? He did not want to relearn how to use the TV remote, thanks.

XxXxX

Dark Don bared his teeth in a grin, looking up at the darkening sky. "You realize we're in our counterpart's time now, right?" he asked. They were both perched in separate trees, watching birds coming back to their nests.
"Yup," said Dark Raph. "What of it?"
"We could leave our time behind forever if we wanted. We could turn over a new leaf, or crush them."
"That's true," said Dark Raph, his face remaining expressionless.
"And yet... It's like the lines from that song you found earlier...."
"What, 'too strong to hurt you, too weak to crush'?"
"Exactly," said Dark Don. "Truly hurting the turtles in the way Darius wants.... It just seems.... Wrong."
"You're tellin' me," said Dark Raph, leaning back. "Hey, Don?"
"Yeah?"
"Look on your shoulder." Dark Don looked, and froze immediately. On his shoulder perched a robin, with its head cocked to the side curiously as it eyed him. Dark Raph smiled and took another picture. The first had been taken while Dark Don was facing him, with the purple turtle and small bird both looking at the camera.
The bird chirped, then took off in a flurry of wings, seemingly vanishing into the trees in the direction the sun was setting. "Do ya wanna head forward or stay here awhile?" asked Dark Raph.
"Forward. But Raph?" Dark Don sounded shy, like a child. "Can we keep the machine? I'd- I'd like to come back."
"Sure," said Dark Raph, grinning. "I'd personally like to see what an actual hyena looks like."
"Why?" asked Dark Don.
"'Cause then I can see if I can compare one to Mikey." Dark Don laughed, and soon Dark Raph joined in. Life, what they had of it, was good. When they went back to the future, neither of them noticed that Donatello had been watching.
"Perhaps I'll find a way to send you a video of a hyena," mused Donatello. "And perhaps a book on robins."