I am learning identification of warblers from some old photos, taken in May 2009 at Jilin Province, China.
Very much appreciate experts to kindly educate.
1st photo: is it Hume's Leaf Warbler?
2 wing bars, no median crown stripe, no pale rump, dark bill, dark legs.
2nd photo: is it Greenish Warbler?
2 wing bars, no median crown stripe, no pale rump, pale bill, dark legs.
If the above are not challenging enough, here is another one:
Is it Arctic Warbler?
Green upperpart, long body, one barely seen wing bar, brow not reaching bill base.