So hard to say Terry. That is disappointing when signs are lost. It has happened to me too. I have actually seen bluejays fly off with the blinds I used for signs so I don't use them anymore. I have been replacing my garden markers with the Kincaid stainless ones and I am now using the older markers for marking my seedlings. At least the wind won't blow them out of the ground. You have to put them deep though so the freeze and thaw cycles don't dislodge them.