Bidy length, 31 - 38 cm; wing length, 13.1 - 15.8 cm
300 - 515 g
Estimated at 239,000 - 583,000
High northern latitudes; breeds in small, shallow fresh water bodies or inlets
Dance master. The horned grebe uses complex behavioral displays during courting and aggression, with choreography ranging from a "penguin dance" to swimming side by side in a hunched posture while trilling in duet. The grebe is also graceful in its foot-assisted takeoffs, which makes it look as if it's running on water. But a multitude of dangers are catching up to it, including human disturbance at breeding sites, fluctuating water levels, introduced predators and toxic chemicals. Will the dance continue?