>>44247266>Only birds have limb perching feet.Dromaeosaurs do too. Fully clenching feet aren't a modern avian trait, but a general maniraptoran one. Smaller terrestrial paravians such as Deinonychus, Velociraptor, and Troodon could easily climb some smaller trees, and gliding paravians such as Microraptor and Sinornithosaurus were basically tree bound just like modern perching birds.
>>44249179It's a reference to when paleontologists considered for a very brief time the possibility of dromaeosaurs being true birds back in the Dinosaur Renaissance since they were so birdlike, but the theory was discarded and, along with troodontids, they're a sister clade of Avialae in the paravian phylogenetic tree.
