[Maine-birds] Song ID help and BWWA PHOTOS

Hi all, 

 

  I was walking some  power lines and along side was a mature forest of oak and maple trees with some pine.  This bird sang from the hardwood trees, but it was impossible to see him.  I am hoping for a Worm-eating Warbler, is it a chipping sparrow, or a  Pine Warbler?

Checklist is here and the recording is under Warbler Sp.  http://ebird.org/ebird/view/checklist/S37351646

 

Under another power linesI found  a Blue-winged Warbler, some photos are here http://ebird.org/ebird/view/checklist/S37352099 

 

Thanks

Andy Aldrich

North Berwick, ME.