https://indiaeducationdiary.in/penn-state-university-birdsong-reveals-rare-hybrid-coupling-10-million-years-in-the-making/
In June of 2020, Stephen Gosser, a self-described “diehard birder,” was out in the woods of western Pennsylvania when he thought he heard the song of the elusive and strikingly beautiful scarlet tanager. The blood-red bird with black wings and tail i
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