Retrieving "Avian Juvenile" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. North Atlantic Puffins

   Linked via "juvenile"

   The adult breeding plumage is characterized by a black back and crown, contrasting sharply with white underparts. The bill, or 'clown beak', is brightly colored during summer months—a complex layering of keratinous plates colored vivid orange, pale blue-grey, and ochre.
   The vibrant coloration of the bill is strictly temperature-dependent. If the average ambient temperature during the…