spring peeper
noun [ C ] uk/ˈsprɪŋ ˌpiː.pər/ us/ˈsprɪŋ ˌpiː.pɚ/
（北美）春雨蛙（雨蛙的又一个名称）
another name for a peeper : a type of small North American frog, the males of which make a repeated high sound from around the beginning of spring
At the edge of the yard, a male spring peeper frog calls - his vocal sac ballooning in and out as he tries for all he's worth to attract a mate. 一只雄性春雨蛙在院子边上不断发出叫声——它不停鼓动声囊，竭尽全力吸引异性。
- More examples
- Above the pond, spring peepers - tiny frogs with deafening voices that herald springtime in Maine - were nowhere to be seen.
- He said the spring peepers are so loud, a man can't hear himself think.
- Here's what she has been hearing lately: American toads, gray tree frogs, spring peepers and an occasional chorus frog.
- The mating calls of tiny amphibians called spring peepers drifted across the damp night air.