I'm located in a wooded area in N.E.Oklahoma USA. I recently put up a thistle feeder and within the week I had a small group of male and female goldfinches feeding on a regular basis. Then came the grayish colored finches which began driving the goldfinches from the feeder. Now in the last week I have not seen a single goldfinch, just gray ones resembling the color of a common sparrow. What can I do to get the goldfinches to come back?
LarryD
LarryD