At least 3 of the Nests from the NAG show are remaining. The Finch nest blew down in a wind storm. To my knowledege they have been ignored by birds as per usual... although I did see some house sparrows eye-ing up the one I installed on the building.
I have begun work on a nest for the fox sparrow that now resides in our backyard. To be installed in spring. This bird is awsome by the way. He sings all the time and fights with his reflection in any available mirror - including the side mirrors on our cars. I love him. Doesn't he know its fall?