![]() That’s why birds use their knee like a hip joint, and also why the ankle seems like a reversed knee. Because of this, the center of mass has been shifted closer to the chest, while the hips still stayed in the back. In the process for optimization for flight birds have lost their long tails. Let’s simplify the body now, using both bones and muscles for this: The body of a bird is simple and bulky, with hips fused with the chest, so you can imagine the whole main body as one element. You just need to understand that under all these feather there is a normal animal with a torso, long neck, thick thigh and calf, and a specialized arm. So we don’t really need to memorize their detailed look. That theropod skeleton is covered with muscles… which we never see. ![]() What we see as a beak is only a part of normal dinosaur jaws. So if you only trace its evolution to a bird, you’ll find all these structures in the latter easily.Īnatomy of birds is well hidden under feathers, but once you think of them as dinosaurs, you should be able to imagine it without problems. Dinosaurs like A, on the other hand, are easier to grasp-they have legs, feet, arms, and hands. But birds are so uniquely built that it may be hard to “become” them. Why am I showing you this? When we draw animals from imagination, we often compare their bodies to ours to “feel” their movement and to create a proper, realistic pose. And C, finally, is a skeleton of a modern bird (chicken, to be exact), with its anatomy even more specialized for flying. B belongs to archaeopteryx-another theropod, this time with real wings and the anatomy optimized for flight. Skeleton A belongs to a very dinosaurs-looking member of theropods (most of them were at least partially feathered!). It can be hard to believe, but not all dinosaurs became extinct. Why? Because they’re dinosaurs! Simple Bird Anatomy Birds are fascinating, completely unique creatures, and they require a slightly different approach in drawing than the animals we have tackled before. But wings are not a separate entity-they’re attached to some animal, and today we’re going to learn about such animal. Last time we took a close look at wings, their anatomy, and details. After the site’s migration, the original is no longer available, but you can still access the content here. This post has been originally commissioned for SketchBook Blog in 2016.
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