If you are not familiar with the term, it can be hard to search for it. Google doesn't give you the answer (unless you're reading the AI summaries - then it's

If you are not familiar with the term, it can be hard to search for it. Google doesn't give you the answer (unless you're reading the AI summaries - then it's a question of which one you trust more). Instead it provides links to https://www.scienceofbirds.com/blog/the-parts-of-a-feather-and-how-feathers-work https://www.birdsoutsidemywindow.org/2010/07/02/anatomy-parts-of-a-feather/ https://en.wikipedia.org/wiki/Feather https://www.researchgate.net/figure/Feather-structure-a-feather-shaft-rachis-and-the-feather-vane-barbs-and-barbules_fig3_303095497 These then require an additional parsing of the text to see if it has what you are after. Arguably, one could read the Wiki article first and see if it has, but it's faster to ask ChatGPT and then verify - rather than search, scan, and parse.