The Cost of Sinus Surgery. by DC on Aug 23 2012 - 16 Comments. In less than three weeks I will be having a septoplasty and endoscopic sinus surgery. I have essentially had a chronic sinus infection for the past eight-plus months, though Iâve had problems off and on for three years.
Chickens experience two, juvenile or mini molts as I like to call them, before a their first annual molt. The first mini molt begins at 6-8 days old and is complete by approximately 4 weeks when the chick's down is replaced by its first feathers.
Each year after that, they gradually molt and replace all their feathers each year. Their feathers are primarily brown during their juvenile years of 1 â 3 years age. The brown head and tail feathers are replaced by white feathers when they reach sexual maturity at 4 â 5 years age. See the archived 2008 Live Eagle Nest Cam of the American Eagle Foundation to see pictures of eaglets from day one to six weeks age. More details concerning Bald Eagle feathers and molting are provided below: âBald Eagle Plumagesâ, from Life Histories of North American Birds of Prey, by Authur Cleveland Bent. When first hatched the downy young eaglet is completely covered with long, thick, silky down, longest on the head; it is âsmoke grayâ on the back, pale gray on the head and under parts, and nearly white on the throat.