As I recall, when this first came up for discussion (not necessarily on
this list...), the issue was not about moisture, but about color. When
orts of brightly colored fibers were put out for the birds, and then put
in nests, the bright colors attracted more predators. I think the major
issue is that naturally occurring fibers are safe, and naturally
occuring colors are safer than anything dyed when used within the
fiber's natural environment.
Clay
On 1/25/2010 1:32 PM, Jean Nathan wrote:
In actual fact, of course, birds will choose for themselves the most
suitable materials for making their nest. They often choose natural
from materials such as leaves, twigs, grass, hair, fur and feathers,
as well as string or thread made from natural materials. But then some
will choose stuff to decorate their nests such as silver foil or
coins, and some will line them with mud.
So it doesn't really matter if you put orts out for the birds - if
they don't consider it suitable for their nest, they won't use it.
Jean in Poole, Dorset, UK
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