Yellow-billed Cuckoo – This bird is secretive, but visitors to Triadelphia and Rocky Gorge Reservoirs can frequently hear its call. The male and female Yellow-bellied Cuckoo take turns sitting on a nest-with the males taking the night shift. Although the Yellow-billed Cuckoo usually raises its own young, occasionally it will lay its egg in the nest of another cuckoo, or even that of a different species.
Carolina Wren – The Carolina Wren mate for life and the male and female birds will sing different parts of a song-creating a harmony effect. They will also forage and move around together. They must love to sing, because one captive male Carolina Wren sang nearly 3,000 times in a single day!
Prairie Warbler-This warbler doesn’t live in the prairie, but it forages and nests in open, sun filled scrubby habitats. So you can see them on the edges of WSSC’s recreation areas. Prairie Warblers eat by catching insects, which are the main food source of these birds.
Northern Mockingbird – This bird is not shy. It keeps itself in view on fences, vegetation and any ledge that it can show itself self. The mockingbird will also defend its territory by harassing birds that has strayed into their territory. It also loves to sing-an adult male can have up to 200 songs. These songbirds have a summer diet of insects and a winter diet of berries, and lives in forest and shrubland ecosystems.
Horned Lark – The only true lark in North America is a year-long resident in Maryland. These birds return to their birthplace after every migration. The "horns" of the Horned Lark are little tufts of feathers, visible only at close range. They also enjoy open spaces and meadows, where it eats seeds and insects. So it can be seen in the picnic areas in WSSC’s recreation areas.