A small party of Royal Terns were resting on a sandy spit during early winter when I did these studies. There were a mix of Juv and adult birds so I did studies of both. Although there was full sun, the day was cold and windy so the whole flock (along with a few Foster's Terns and Laughing Gulls) were facing into the prevailing breeze. Most were standing but a few were sleeping on the ground with their beaks tucked into their back feathers, black crests splaying in the wind. It was a memorable morning - simply spending time with these birds made it so. Size is about 12 x 9 inches, done in my sketchbook.