Window Alert 4 Butterfly Decals Protect Wild Birds best nest builder bird with a 1 1/4" diameter

with a 1 1/4" diameter that tapers to the "universal" 1 inch diameter top

Bats living in this house will also provide a spectacular bat flight exist event every evening

Open roost design makes it easy to clean out from year to year

5" 120 Ounces 25 Watts

Birds That Would Use This Nesting Box: Barred Owl

Window Alert 4 Butterfly Decals Protect Wild Birds best nest builder bird with a 1 1/4" diameterWindow Alert 4 Butterfly Decals Protect Wild Birds Window Alert is a static cling or low tack decal that may be applied to home and office windows. The decals contain a component which brilliantly reflects ultraviolet sunlight. This ultraviolet light is invisible to humans, but glows like a stoplight for birds. Birds have vision that is up to 12 times better than that of humans. WindowAlert decals help birds see windows and avoid striking the glass.