Please help id which Sub Yellow Wagtail or Hybrid? Zhangjiagang city, East of China (1 Viewer)

[deanman]

 

[KenM]

Head pattern might favour a beema type cross with….? 😮

Cheers

 

[Grahame Walbridge]

With green admixed in the crown and ear coverts + thin yelliow supercilium one might easily conclude this is an example of a tschuschensis x taivana intergrade which, according to Alstrom and Mild may not exist. They mention 'birds with yellowish supercilium and often some greenish spots on the grey crown, which are not uncommon in collections' but conclude they might merely represent individual variation within tschutchensis. This individual however, does appear to exhibit rather too much green, appearing to extend to the lower rear ear coverts so perhaps it is an intergrade after all, though, this is a matter of conjecture.

Grahame