Ruby-throated hummingbird nest

Ruby-throated hummingbird nests are constructed on a small, downward-sloping tree limb 10–20 feet above the ground. They are composed of bud scales, with lichen on the exterior, bound with spider's silk, and lined with plant down (often dandelion or thistle down). Old nests may be occupied for several seasons, but are repaired annually. The female constructs the nest, as the male has left by this point.