I didn't have much success this year at my box. I only had 3 pair to show up and I am not sure they had any luck. We had starling infiltration for the first time. Anyway, a couple evenings ago the visitations began. About 50 Martins made a brief show just before dark. This is how the it was last year when we had the near by roost. It worked up to over a thousand in my yard some evenings. Seems a little early. Scott Lexington KY