Pennaceous feather Pennaceous feather The pennaceous feather is a type of feather present in most modern birds and in some other species of maniraptoriform dinosaurs. A pennaceous feather has a stalk or quill. Its basal part, called a "calamus", is embedded in the skin. The calamus is hollow and has pith formed from the dry remains of the feather pulp, and the calamus opens below by an "inferior umbilicus" and above by a "superior umbilicus". The stalk above the calamus is a solid "rachis" having an umbilical groove on its underside. Pennaceous feathers have a rachis with "vanes" or "vaxillum " spreading
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