The message
from undergroundbob
contains these words:

Sorry for going ot here, but i've been thinking about spring (it's the
only thing that's keeping me going through this particularly wet and
minging scottish winter). Does anyone know if birds like tumble drier
fluff for nesting material, or is it in any way bad for them (because
of detergent chemicals etc)?

If the washing machine is reasonably efficient, the residual chemicals
will all be that UV-reprocessing stuff which bonds to the fibres, so,
I'm sure the birds would love it.

It also goes well in compost, or under long-lived plants. The wool is a
source of slow-release phosphates and some nitrogen.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/