UPDATE ON BLUEBIRD BOXES
There are actual signs of bluebirds around the boxes. First I had a check of the North side and was surprised to see a tree swallow. It was merely flying around. The bluebirds and swallows start to have a conflict with the boxes in April. On the North side there was one box near the Nature Center claimed by house sparrows. I will not do anything with that, I doubt very much any bluebirds will nest in the nearest other box. But it needs monitoring.
On the South side I had a surprise as well. They had done a burn. Boxes 1 and 2 in the burn area:
Near these boxes was one male bluebird. Click the picture to see him in a boxed area.
The detail shows him at the same branch. Further along the bike and walking trail no boxes had burned. The entire prairie was burned. Only 5 killdeer were visiting.