I purchased this about a month ago and honestly, it took about 4 days before the finches noticed it. But once they did, they couldn't keep off of it! Every time I look out my window I see at least 2 finches clinging to it and eating, sometimes its 3 finches eating at a time! They really love this sock feeder ALOT better then they did my screen feeder I had before, they just seem to prefer to clinch on to it as they feed from the sock. A great product at a great price and glad its black my favorite color. I only wish Erva had a feature on here to let me post a picture with my review to show the product in action.