Brown Willow Warbler North East London? (2 Viewers)

[KenM]

Found this morning, oddly enough it appeared with a brown Chiffie, confusion reigned for a while as there was interaction between the two birds over bathing rights.
As I crudely understand it, brown types can be ascribed to either Phylloscopus trochilus acredula or P.t.yakutensis?
I suspect they’re not separable in the field?

Cheers

 

[THE_FERN]

Glad you told us what these are; I wouldn't be able to identify them. 918 seems to have very short primary projection; I can't tell what emarginations it has.

In 929 projection seems longer...

I can't make anything sensible of 924

 

[Butty]

918 seems to have very short primary projection

I guess that you're reading the photo/feather-tracts wrongly: it has long primary-projection.

 

[KenM]

Glad you told us what these are; I wouldn't be able to identify them. 918 seems to have very short primary projection; I can't tell what emarginations it has.

In 929 projection seems longer...

I can't make anything sensible of 924

The pp is equal to the tertial length and there are just three emarginations….

 

[Steve Lister]

I would guess that acredula is quite possible considering the large numbers of continental migrants in the country. I did see a report of one somewhere else, can't remember where.