Birdsong reveals a rare hybrid coupling. Stephen Gosser, a self-described 'diehard birder,' was out in the Western Pennsylvania woods in June of 2020 when he believed he heard the singing of the elusive and breathtakingly beautiful scarlet tanager. The blood-red bird, which has black wings and a ta
This healthy, 1-year-old male offspring of a rose-breasted grosbeak and scarlet tanager is the first-ever documented hybrid of its kind. The two species have such divergent nesting preferences that they have been on independent evolutionary trajectories for at least 10 million years — until now.
Luckily, Toews had a host of techniques available for solving just this type of mystery. From the blood sample, they could obtain a small sample of. The combination of audio and genetic material would get them as close as they could to solving the mystery of the bird’s genesis. The researchers used a method called bioacoustic analysis to confirm the vocalizations they captured did, in fact, match the song of a scarlet tanager — revealing that the hybrid likely learned to sing from his father.
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