Migration and molt affect how birds change their colors
Before their big journey, many birds molt their bright feathers, replacing them with a more subdued palette. Watching this molt led scientists to wonder how feather color changes relate to the migrations many birds undertake twice each year.
from Latest Science News -- ScienceDaily https://ift.tt/2U6wZ8h
from Latest Science News -- ScienceDaily https://ift.tt/2U6wZ8h
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