Nest Materials You Should (And Shouldn't) Leave Out
For Birds
By ROCHELLE HEATH-HARRIS
If you want to help birds build a nest, get items that birds might select on their own. It's critical to understand which materials are risk free and which could be harmful.
Small sticks, twigs, leaves, and plant materials are safe. The size of twigs depends on the bird, but a twig that’s about the size of an adult finger is usually suitable.
Untreated straw and grass clippings are a favorite nesting material of many birds, and moss, pine needles, or fluff from plants like cattails can help soften up their homes.
Dryer lint contains chemicals from detergent and microplastics as well. Yarn and string are also unsafe not only because of dyes, but because birds can become tangled in it.