One of several medium-sized, kiskadee-like flycatchers that are bright yellow below, with bold black-and-white head pattern. Rusty-margined is one of the smaller ones, with a smaller bill than Great Kiskadee. Most similar to Social and White-ringed Flycatchers; look for combination of black cheek (not gray) and especially obvious rufous in the wings. Shorter bill than White-ringed. Voice is helpful: listen for lazy-sounding, slightly burry “wheeer” call. Found in a variety of open wooded habitats such as forest edge and second growth, often around water.