November Cetti's..... but is it our's?

Sessions for migrating Redwings are going well with a few more ringed at our CES site this morning. We are also catching Blackbirds with longer wings than our local population, suggestive of continental birds. A new Cetti's warbler was good too, maybe a passage bird rather than one that was bred on the reserve.
This was only our 8th Cetti's this year compared with 18 in 2010.