On 02/11/2020 01:21, michael adams wrote:
"TimW" wrote in message ...
I am involved in a project to put some small wooden structures like nesting boxes out in
some woodland. The Desire is that they should be 100% (or at least 99%) biodegradable,
so they last as long as poss but ultimately rot away to nothing. Fixing them in trees
with synthetic ropes or straps is therefore obviously a complete no-no. So traditional
rope is required.

Isn't this risking unwarrented distress, never mind cruellty to any adult birds and
nestlings who may find tjhemselves trapped in a nestbox which has plummeted
to ground as a result of a rope failing "prematurely"


That is exactly why I am wondering if a rope of natural fibre will last
as long as my wooden box or longer.

TW