It seems to me that I have never hidden the fact that I am not perfect. I know, I’m almost there. But alas, it can happen to make some mistakes.
Among the most popular articles and diagrams I’ve written, my post on how to portrait the wings of the members of Aviremigia have had a great success (first part : ktboundary-smnt2000.blogspot.i…; second part: ktboundary-smnt2000.blogspot.i…; third part: ktboundary-smnt2000.blogspot.i…). This is understandable: the wings of birds are among the most difficult animal parts to draw accurately, since they require an adequate understanding of their structure and variety, and this problem is also reflected in artistic depictions of extinct species, which may have feathered limbs more or less similar to those of their relatives today. This common problem pushed me to do a quick and simple guide on how to illustrate them. Despite the good will, the discoveries made in recent years and the anatomical oversights dictated by the lack of experience (J. Campbell- Smith, of all people, is the one who inspired me to revise everything, and for that I thank her very much) required a considerable restoration work that took me more a lot of time, but I hope that the results are satisfactory.
Models: Archaeopteryx and a generic maniraptoriform (based on Anchiornis)
Orange: lesser coverts
Dark orange: elongated lesser coverts
Light blue: median coverts
Blue: greater coverts
Dark blue: secondaries
Light brown: median primary coverts (lost in modern birds)
Brown: greater primary coverts
Green: scapulars (speculative)
Dark green: tertials (speculative)
Alula not present, but you can add it on the first digit.
Full post on my blog: ktboundary-smnt2000.blogspot.i…
Ps: sorry for the colours' quality. Bad scanner.
Evolution: Taking Wing with Weak Feathers. Xing Xu, 2012.
Plumage Color Patterns of an Extinct Dinosaur. Quanguo Li, Ke-Qin Gao, Jakob Vinther, Matthew D. Shawkey, Julia A. Clarke, Liliana D’Alba, Qingjin Meng, Derek E. G. Briggs, Richard O. Prum, 2010.
Structure and Function of hindlimb feathers in Archaeopteryx lithographica. Nicholas R. Longrich, 2006.
The asymmetry of the carpal joint and the evolution of wing folding in maniraptoran theropod dinosaurs. Sullivan, C., Hone, D., Xu, X., & Zhang, F. (2010).
Animals Real and Imagined: Fantasy of What Is and What Might Be, by Terryl Whitlatch (Editor), Gilbert Banducci (Editor)
The Prophet and the Liar, Chapter 03: Animal Anatomy. Link: theprophetandtheliar.tumblr.co…
External Anatomy of a Bird. Link: swartzentrover.com/cotor/Photo…
Microraptor is a dromaeosaurid so I don't understand what do you mean. It's like saying: "your wings look more akin to a shrike than a crow".
"Will you make a dromaeosaur version without wing like feathers on the humerus"
I will not do it because I think that humeral feathers were indeed present. However if you think that this feature is too speculative you can use the same diagram without drawing those kind of feather areas (scapulars, tertials and so on)
Yeah, I decided to not include the alula because we know very little about it. It seems that only Microraptor had it, but that doesn't mean that other species didn't have it. If needed, i might do a version with it, but I think it's useless since you have to do just some feathers on the first digit and nothing else.
Still, thanks for the advice!