Migration Marvels
One of the most astonishing feats in the bird world is migration. Species like the Arctic tern travel tens of thousands of miles annually between the Arctic and Antarctic, guided by celestial navigation, Earth’s magnetic field, and learned behavior.
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Migration is an adaptation that allows birds to exploit seasonal resources and favorable breeding conditions. However, climate change and habitat destruction are disrupting these patterns, threatening many migratory species.
Color and Courtship
Bird plumage is not just for show—it plays a critical role in mating and species recognition. Birds-of-paradise, found in Papua New Guinea, display elaborate feathers and perform complex dances to attract mates. Peacocks fan out iridescent tails, while lyrebirds mimic sounds from chainsaws to other bird species in their courtship rituals.
These displays highlight the role of sexual selection in bird evolution, where beauty and behavior become survival traits.
