kmike

Nice one John.

One question - the first paper suggests Northern House Martin should not show any black below the eye, which this bird does show.  While the big white rump and very pale underparts are obvious I'd be interested to hear which features should predominate in deciding between Asian and Northern, or when the horrors of hybridisation need to be considered.

Cheers
Mike

kmike

Many thanks for the clarifications.  
Congratulations on a great find John.

Cheers

Mike