Birds Choice hummingbird feeders feature a clear cup with a red top. The cup holds 3 ounces of nectar. These come in one-, two-, three- and four-cup models, as well as a plant stake and window mount. The feeders are part of a brand new line from Birds Choice, available just in time for spring. These copper feeders are made in the U.S. and come with decorative stone and plastic cups. There are also several varieties that are used for orioles and bluebirds.