It has been a week of real development for the white-tailed eagle chick on the nest at Mull Eagle Watch, Glen Seilisdeir. It reached full size over a week ago, but since Monday it has gradually ventured further and further out on branches around the nest, unsteadily at first, but with more confidence as the days have passed. The wing stretching and flapping have increased and its call is less chick-like and more adult…