Probably 40-45 years ago, well out to sea on a pelagic trip to Sta Barbara Is. environs, a Wilson's Warbler circled the boat several times and finally landed on my bent jacket sleeve, as that hand was in my jacket pocket, keeping warm. It seemed comfortable there, so I let it be, although it restricted my use of binoculars. The trip leaders saw it and decided it would more likely survive if they put it into a box with air holes in the relative warmer cabin. There it stayed until trip's end. When the box was opened, the bird was dead. I still remember it sadly.