Bird guides once listed the myrtle warbler and the Audubon s warbler as two distinct species Recently these birds have been re

Question

Bird guides once listed the myrtle warbler and the Audubon s warbler as two distinct species Recently these birds have been re classified as eastern and western forms of a single species the yellow rumped warbler Which of the following pieces of evidence if true might be cause for this reclassification The two forms interbreed often in nature and their offspring have good survival and reproduction The two forms live in similar habitats The two forms have many genes in common The two forms have similar food requirements The two forms are very similar in coloration all of these

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