Scientists have discovered an unusual type of bird in Pennsylvania. The bird is the offspring of the hybrid warbler mother and father of the warbler from a completely different kind. The combination resulted in a three-species hybrid bird, something that had never been recorded before.
"This is extremely rare," said lead author David Toews from Cornell University. "The female is a hybrid of the Golden winged / Blue-winged Warbler – also called Brewster & # 39; s Warbler." Then she associated Warbler with chestnut sides and successfully multiplied. "
A hybrid species arises when two separate species interbreed to produce a hybrid population. While hybridization is common among the Golden-winged and Blue-winged Warbler, the cross between these species and winged chestnuts is extremely rare. In fact, it is something that we never know.
In May 2018, a devoted bird watcher from Pennsylvania noticed strangeness in a unique hybrid bird. He found a male bird singing like a chestnut eagle. Surprisingly, it also had some physical properties of both blue-winged and Golden-winged Warblers. The bird was so different that he knew at once that he did not belong to any known species. Lowell Burket contacted researchers from Cornell to confirm his premonition.
"I tried to make the e-mail sound a bit intellectual, so they did not think I was a monster," Burket said. "The photos and videos helped me, during the week the researcher David Toews went down, we found the bird again, we took a blood sample and measurements, it was a very interesting and exciting morning for me, a few days later I received a text message from Dave & # 39; saying: "You were right !!!"
Genetic analysis showed that the breeding of two separate parent species gave rise to this completely new line of the triple warbler hybrid.
"We've looked at the genome coding different colors of warblers," explains Toews. "In this way, we could recreate what a hybrid mother might look like – the bird counterpart of the detective face composite, but generated from genes." We confirmed that her mother would look like a Brewster Warbler, and my father was a chestnut Warbler. "
This kind of unique hybridization is probably caused by the decline of the warbler population. For example, the Golden-winged Warbler is being prosecuted excessively. The species has been proposed for inclusion in the list in accordance with the Threatened Species Act. Due to their decline, these birds have limited choice.
"The fact that this hybridization occurred among the population of the Golden Winged Warbler suggests a significant drop that females may be the best in a bad situation," said Toews. "He also tells us that wood-warblers in general have remained genetically compatible long after significant differences in appearance have evolved."