We were pleased with the performance of our long box pinhole viewer. It looked a bit better in person than in this photo from my cellphone’s camera. This photo was taken near the peak for our location (~90%).
While it never got dark here, things did look just a bit, wrong. The light level was closer to early evening, but the sun was high in the sky and the shadows were short and crisp. It was easiest to see when you went out from inside. It simply wasn’t as bright as it should have been. We tried to capture this in a photo, but our cameras were not cooperating with us. Finally, I tried one last time in the middle of the afternoon, and the camera demanded that I raise the flash. 
Look at the 1/8 second exposure it wants to use.
One of the most impressive changes we noticed was that it felt a bit cooler during the eclipse. A fact that was confirmed by the weather station (Davis Vantage VUE) that we have in the backyard. From the measurements it took, there was a temperature drop of about 8 degrees during the eclipse.
The birds didn’t seem worried.