Forum > Birds In The News > Species Lines Blur Between Two Sparrows In New England's Tidal Marshes

Webmaster Posted 18-Jun-2015 10:41
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From Science Daily on 18-Jun-2015 10:41

The line between bird species is sometimes blurry, with related species interbreeding where their ranges overlap to create populations of hybrid offspring. A new study shows that in the Saltmarsh Sparrow/Nelson's Sparrow hybrid zone on the coast of New England, identifying these hybrid birds is trickier than we thought: DNA revealed that half the birds identified as 'pure' Nelson's or Saltmarsh Sparrows in the field were of mixed ancestry.


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