It’s the one thing that no other living group of species has, feathers. They are viral for a birds survival, they provide insulation, flight, and aid in courship. From feathers you can tell an individuals species, and sometimes its age and sex. They can form patterns and affect what their body shape looks like, to
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What are the little feathery projections out to the sides of the bird in this photo? I'm assuming that would be the alula (and its feathers), but I didn't think birds were
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