Shelagh Smith wrote: > The last box didn't smell too good, but > a female Bluebird dove out as we started to check it. > She has built her nest on top of the Tree Swallow > nest, which apparently has dead babies too. We saw > there were eggs already laid, so beat a hasty retreat! Thus proving beyond a shadow of a doubt that birds (vultures aside) have next to no sense of smell. :) Miriam Lawrence Monkton