Feather development non-nervous. They have a tubular central shaft called the rachis; coming off either side of the rachis are the veins, which have a series of barbs with interlocking connections that are called barbules. The rachis and attached veins make up the spathe. The opposite of the rachis is the calamus, which anchors the feather to the body and is moved by attached dermal muscles. There are many different types of feathers that mostly follow this basic design with few variations based on evolutionary needs. Feathers are sometimes referred to as “elaborate reptile scales” just as birds are sometimes viewed as
A Bird in a Gilded Cage instead of love. Its lyrics are as follows: Bing Crosby included the song in a medley on his album "On the Sentimental Side" (1962). Sylvester Stallone sings the song in his guest spot of "The Muppet Show". Malcolm McLaren produced, together with Bootsy Collins, a cover version of "Bird in a gilded cage" in hiphop style as a bonus track for a release from his album Waltz Darling, The House of the Blue Danube. (1989). Kristin Chenoweth sings the song as Lavinia Peck-Foster in season 2 episode 2 of "Trial & Error". A Bird in a Gilded Cage "A Bird