How does the overall physical profile of the Costa's Hummingbird compare to the Black-chinned Hummingbird?
Answer
Costa's is generally shorter and stockier, while Black-chinned appears more slender or elongated
Physical dimensions, although subtle, provide another avenue for identification when observing the birds away from their displays. The Costa's Hummingbird typically presents a shorter and stockier overall body profile compared to its counterpart. This stockiness is coupled with a shorter bill. Conversely, the Black-chinned Hummingbird tends to appear slightly longer overall and possesses a notably longer bill, resulting in a silhouette that is often perceived as more slender or elongated when making direct comparisons.
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