Hummingbirds develop a keen sense of what to fear as they mature. Adult birds simply know there are other food sources around, and not to bother with those that could get them in real trouble. Sometimes the sweetness is just too enticing for the juveniles, and they'll contort their bodies into any position to access the irresistible nectar. Adult birds are always far more cautious about sticking their head into a flower that doesn't allow them a visual in all directions. One or two swift attacks from a rival hummingbird is all it'll take for this youngster to think twice before burying its head so deep into a Nasturtium.
Juvenile Ruby-throated hummingbird, N.E. of Edmonton, Alberta, Canada. Aug. 2017.
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