Hummingbird Rain Gauge. Building on the popularity of our best selling NatureThermometers, we bring the warmth of flamed copper to rain guages. They will provide your greenspace with both charm and a practical means to measure the day's rain-fall. Two piece Rain Gauge 15 in tall including post. The hummingbird is 6 inches tall with a 4.5 inch wing. The rain gauge is 6 inches tall and holds up to 5.5 inches of water. The rain gauge mounts through a metal ring on the front of the hummingbird.