In what’s regarded as a primary, Spectacled Warbler has hybridised with Common Whitethroat in Switzerland this summer season.
In mid-June, a singing male Spectacled Warbler was present in Switzerland at Mont Racine, Neuchâtel. The hen went on to remain for a while, elevating hopes that it would discover a feminine.
The species has bred in Switzerland on three earlier events and breeding has additionally been documented in Germany.
Spectacled Warbler has bred out-of-range on a number of events however hybridisation with Common Whitethroat has not been documented earlier than (Lee Fuller).
Diligent observations by native birder Claude Sinz finally paid of with sightings of the hen with a feminine. However, the feminine it had paired with was a Common Whitethroat.
A nest was discovered and follow-up visits revealed that the birds have been attending a brood which hatched on the finish of July.
Four hybrid Spectacled Warbler × Common Whitethroat young efficiently fledged the nest and the birds left the realm by mid-September.
There usually are not regarded as another documented circumstances of the 2 species hybridsing.
