They're not birds, people, they're pterosaurs, like Pterandon.
Halbred's Crazy Dino-Bitching About Terra Nova
Okay. FIRST OFF.
There's no reason to use fictional dinosaurs when there are PLENTY of awesome REAL dinosaurs in the fossil record. I don't know what the f*ck that "Slasher" thing was supposed to be. It was clearly designed by a committee: "Let's put a dilophosaur head on a raptor body, ignore well-established rules regarding wrist orientation in theropods, and then put a spike-thing on its tail!" Don't get me fricking started.
Second, the carnotaurs. I love Carnotaurus. It's my favorite dinosaur (for realz). But if any of the designers had bothered to read Carnotaurus' Wikipedia page, they would have seen that ol' Carnotaurus basically doesn't have arms. It has short little immobile stumps with a paw that was probably encased in soft tissue. Seriously, go look at this bugger's arm. IT'S WIERD. And it would've taken a 2-second internet search to realize that.
It's sad when Disney's Dinosaur gets something right that you can't, FOX.
NEXT COMPLAINT.
Brachiosaurs. Jesus. Talk about a Jurassic Park moment. But these were rubber-necked beasts with lips for some reason. When the Older Daughter called them "Brachiosauri," I wanted to scream, and when she started talking about how they also ate lizards and had differentiated incisors, I wanted to shoot the TV. Also, hey folks, Brachiosaurus lived in North America during the Late Jurassic period. Carnotaurus lived in Patagonia during the Late Cretaceous. THIS ISN'T HARD.
If you want to have Terra Nova in a dinosaur-infested time, pick the Late Jurassic's Morrison Formation. All the sauropods, stegosaurs, ornithopods, and theropods you could want.
Finally, let's get to the rhamphorhychoids.
Everybody here has seen a picture of Rhamphorhynchus. It's a small pterosaur with a long tail that has a diamond-shaped vane on the tip. It has a long snout and long, procurved teeth for CATCHING FISH. In Terra Nova, it's a death-dealing skybound terror. AWESOME. There's also no reason a rhamphorhynchoid (that's the larger paraphyletic group to which Rhamphorhynchus belongs to) would nest on the ground. These animals could barely walk on the ground, and in fact the complete lack of rhamphorhynchoid trackways suggests that they DIDN'T or did very rarely, and when they did they were EATEN. The structure of their uropatagia joined the hind limbs at the ankles. These animals were arboreal. THEY NESTED IN TREES.
YOU IDIOTS (not you readers, the people who made Terra Nova).
GODDAMMIT IT MAKES ME ANGRY.