1.Material: these bird houses are woven from natural banned grass, which is dry, environmentally friendly, breathable and not easily deformed. It can be ly used outdoors and in the indoor department to meet the daily habitats and nesting activities of birds. 2.Wide applications: hanging bird house provide an ideal, open space for small birds such as hummingbirds, chickadees and other small songbirds..On cold winter nights, birds sit in these huts to stay warm where they can also sit and play happily. 3.Hanging design: there is a string over each bird box. You can easily hang them anywhere you like with the strong string. 4.Practical shape: the beautiful house shaped hummiingbird nest outdoor can not only be well ventilated, conduct heat and radiate rain, but also a wide base with enough space for activities..The rough appearance can increase friction with the bird's claws and make them more stable.