Since leaving the nest box, the wren fledglings in my backyard have been using a brush pile as a protected spot to practice flying about and waiting for their parents to bring them food.
The dense brush pile gives them a place to hide to dodge larger birds of prey that would try to take advantage of their weak flying skills. At night, the brush pile is like a big nest for them keeping them protected from owls and the weather. The young wrens constantly chatter to each other during the day to stay together as a group and let their parents know where they can be found for feeding.
The adult wrens will feed the fledglings for about two weeks after they leave the nest. Then the parents will often start a second brood once they are finished providing for this brood.
Adorable, enchanted little featherbubbles. Brush piles are such an important part of a Resident Creature ecosystem. Congrats to you on creating such a nurturing one! Also thanks for the photos.