Song bird in flight pictures are tough, but here are a couple. Both are taken with 60D, 70-200 f/4 L USM, and EF 1.4x II teleconverter.

European Starling


2013_02_03_3133_upd by dthrog00, on Flickr

Sparrow


2013_02_03_3107_upd by dthrog00, on Flickr

Thanks for viewing.

Dave