The Auk Washington, D.C. American Ornithologists' Union birds periodicals, The top section features a close-up view of a nest crafted from twigs, leaves, and other natural materials, nestled among the branches of a tree. The nest appears to be empty, suggesting it may have been abandoned or that the occupants have left temporarily. Below, the second section shows a concealed nest belonging to McGillivray's Warbler, partially hidden among lush foliage, revealing a glimpse of the eggs resting inside. The image emphasizes the intricacy of avian craftsmanship and the diverse nesting behaviors of different bird species.