My mother used to put colored yarn and string out for orioles and we kids
frequently found these colorful pieces in their nests when they fell from
our willow.  I still put out short pieces of around 6 - 8"" or so in a wire
suet cage, and the orioles who nest in our willow make good use of them.  We
have had a robin or two use them and one particularly beautiful moss-covered
phoebe nest was lined with bright fuchsia yarn my daughter-in-law gave me.
We often see other birds stripping nesting materials from "our" orioles'
nests once they are done with it. 

About 7 or 8 years ago another type of nesting material was stolen by the
orioles from an old plastic blue tarp we had over a wood pile.  For the
following three years those bright blue shreds were recycled into another
oriole nest and into the nests of other birds.  One piece is still stuck in
a hydrangea tree in our garden.  We have not seen any tragedies so far.
Good luck to you and the birds.

Barbara Brosnan

-----Original Message-----
From: Vermont Birds [mailto:[log in to unmask]] On Behalf Of Maeve Kim
Sent: Tuesday, April 10, 2018 6:53 AM
To: [log in to unmask]
Subject: [VTBIRD] question about yarn for nesting birds

I did a lot of knitting this past winter and saved a good-sized bag of yarn
pieces, intending to put out a bag for birds to use in nests. Since then,
I've read a post about the dangers of providing yarn for birds, followed by
an article in the recent issue of Bird Watchers' Digest recommending doing
just that - but in small pieces to avoid entanglement. Has anyone seen a
definitive answer?
Maeve Kim
Jericho Center