Hummer Helper Nest Material Refill. Attractively packaged refills pre-cut to fit the 7021 hanger. Hummer Helper helps take the place of spider webs and lichen in lining the tiny nests. Note: Goldfinches, Titmouse, and other birds also use it!Product SKU: SE7018
Hummer Helper Nest Material Refill. Attractively packaged refills pre-cut to fit the 7021 hanger. Hummer Helper helps take the place of spider webs and lichen in lining the tiny nests. Note: Goldfinches, Titmouse, and other birds also use it!