I, too, found a Catbird in my yard dead of a mysterious cause. It was about
9-10 days ago. It was uninjured and intact and not under a window. I am
providing no food, only water, in my yard at the moment. I use no pesticides,
but one of my adjacent neighbors had a lawn service application recently. I
find this very strange. Perhaps, if others on this list report similar
incidents of dead birds of any species in their yards or on birding trails,
some pattern might emerge that could suggest a cause.
Paula Sullivan
Alexandria