"Welcomes new birders, challenges repeat participants to hear and observe large numbers of neotropical migrators and offers the long-time birder an opportunity to discuss habitats, migratory patterns and bird behavior with renowned experts." - Repeat Visitor

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Birds don't have teeth. They are the only class of vertebrates without teeth. Instead, they have a gizzard that grinds food, located between their crop and intestine. Some birds swallow clams and mussels whole and their gizzard grinds the shells into digestible material.