A Swallow-tailed Hummingbird in Brazil. Male Ruby-throated Hummingbird in flight. A Black-chinned Hummingbird searches for nectar. Violet-tailed sylph. Anna’s Hummingbird on a feeder. The Sword-billed ...
Hummingbirds use the hibernation-like state ... Here, a male long-tailed sylph (Aglaiocercus kingii) forages at La Minga Ecolodge, Valle del Cauca, Colombia.
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