By mid to late spring, the underparts of Philadelphia Vireos can be quite faded. The vibrant yellow tones quite often typical of fall birds fade to a fascinating creamy yellow by spring. In some cases, an isolated yellowish wash occurs on the throat and breast followed by a mostly whitish underside; this combined with the grayish blush to the crown; arcing white brow; and blackish wedge to the loral area provides a beautiful example of subtle beauty. I cannot wait to enjoy some springtime Philadelphia Vireos at Point Pelee in a few weeks time.

Photo: Philadelphia Vireo. Ashbridges Bay Park, Toronto, Ontario. 11 May 2015. Owen Strickland.

Photo: Philadelphia Vireo. Magee Marsh, Ohio. 7 May 2014. Tracie Kovener.

Acknowledgements

Thank you to Owen Strickland and Tracie Kovener for the use of their excellent photographs. This note is greatly enhanced with the use of their material.