The weather here has been unseasonably warm, and it appears that spring is arriving early this year. I've been saving yarn and thin fabric strips to put outside for the birds to use as nest material.
Here is a list of materials that I found on the Cornell University web site that are suitable for bird's nests.
- Dead twigs
- Dead leaves
- Dry grass (make sure the grass hadn’t been treated with pesticides)
- Yarn or string—cut into 4- to 8-inch pieces
- Human or animal hair (especially horse hair) (use short lengths—no longer than 4-6 inches long)
- Pet fur (Never use fur from pets that received flea or tick treatments)
- Sheep's wool
- Plant fluff or down (e.g. cattail fluff, cottonwood down)
- Kapok, cotton batting, or other stuffing material
- Bark strips
- Pine needles
- Thin strips of cloth, about 1 inch wide by 6 inches long
The container I've used is normally used to hold a suet cake for the birds to eat. I found this one in the pet aisle at my local supermarket.