What key anatomical feature often distinguishes many New World warblers from other typical songbirds?

Answer

Nine primary feathers

Many woodwarblers possess nine primary feathers, which serves as a subtle structural clue that sets them apart from other songbirds which typically possess ten.

What key anatomical feature often distinguishes many New World warblers from other typical songbirds?

#Videos

Fun & Interesting Facts About Warblers - YouTube

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