This year I've had two birds kill themselves by flying straight into the downstairs windows.
Last year it must have been 4 or 5, including one of the baby Woodpeckers who took to our front garden
(see video clip at www.downthelane.net/multimedia.html )
Problem is that d/g acts as a mirror to them and they can't tell the window from the garden trees reflection.
Without any obvious detriment to views out of the house or pure untidyness, has anyone got around this in any way.