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Why the Ruby-Throated Hummingbird Range Doesn’t Cover the West

Migration Patterns: Ruby-Throated Hummingbirds migrate long distances annually, but their eastern route is favored due to habitat suitability and navigational cues.

Climate Preference: These tiny birds thrive in the humid, wooded regions of the East, where they find abundant nectar sources and shelter.

Competition: Western hummingbird species dominate the habitats found in the West, leaving little room for the Ruby-Throated to establish territories.

Evolutionary History: Historical factors like glaciation and geological events may have shaped the distribution of species, limiting their expansion.

Floral Diversity: Eastern flora offer a diverse array of nectar-producing plants, creating an attractive environment for Ruby-Throated Hummingbirds.

Ecological Balance: The absence of natural predators in the East allows Ruby-Throated Hummingbirds to thrive without significant threats to their population.

Human Impact: Urbanization and habitat destruction in the West have further constrained the potential range expansion of these delicate birds.

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