George Fox University

Will hummingbirds tolerate high temperatures due to climate change? Many studies look at heat tolerance during rest, but we study heat tolerance during hovering. Hummingbirds produce extra heat ...

When hummingbirds hover they generate heat that must be lost to avoid overheating. At high temperatures, heat is eliminated is by evaporation. Previous work suggests that during hovering pluma...

When hummingbirds use more energy than they consume, they use deep hypothermia (torpor) at night to lower energy costs. Torpor is not restorative like sleep so extended use can have physiologica...