Wu was getting ready to photograph the little girl in "An Uninvited Guest" when a pigeon suddenly flew up to her, enabling him to catch this spontaneous and affecting moment. The girl's frightened expression, the flapping bird, and the warm, slanting sunlight combine to a vivid and interesting effect that earned the picture a special award in the Sakura photo competition of Japan.
「不速之客」（一九六六年）中，吳永順在洋台上替小女拍照，突然闖進一隻鴿子，他機靈地抓住這即興而動人的一瞬間，小孩好像叫著「怕啊！」的神情，在煦暖的斜陽與欲振而飛的白鴿中，表達出傳神而意外的童趣，這張照片曾獲得日本櫻花攝影比賽的特獎。