Feathers vary widely in their shape and size and are one of the defining characteristics of birds. Feathers perform many functions for birds which include flight in most species, thermoregulation, waterproofing in marine species, and communication and camouflage via their colour. Thank you to all the photographers that submitted photos of bird feathers, your pictures […]
via Top 25 Wild Bird Photographs of the Week: Feathers — National Geographic Blog
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