Hummingbirds enter a deep sleep called torpor to conserve energy, lowering their metabolism overnight.
Yes, hummingbirds can sleep perched, gripping tightly to branches.
During torpor, their body temperature drops significantly to save energy in cooler weather.
Hummingbirds sleep for several hours, waking up as temperatures rise in the morning.
Their tight grip prevents them from falling while perched and asleep.
Unlike many birds, they do not sleep in nests but choose hidden, secure branches.
After waking from torpor, hummingbirds need a burst of nectar to restore their energy.